get_map returning a raster of nan values for areas where it previously worked

[Randomdude11]

What happened?

Hello!
I am using get_map to get dem data about different communities in the US.
I call it like so:

get_map(
        geometry=polygon,
        layers=["DEM"],
        resolution=30,
        geo_crs="EPSG:3857",
        crs="EPSG:3857"
    )

Where polygon is a shapely shape whose coordinates are in web mercator meters.
I used this without issue for a while now, but lately I have started to get nan values for some communities. What is interesting is that some of my cached data appears to have gotten correct results for them before - for example, Dillon, MT.

What could be the cause?

What did you expect to happen?

No response

Minimal Complete Verifiable Example

MVCE confirmation

• Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue.
• Complete example — the example is self-contained, including all data and the text of any traceback.
• New issue — a search of GitHub Issues suggests this is not a duplicate.

Relevant log output

Anything else we need to know?

No response

Environment

Details

[cheginit]

It'd be easier for me track the issue down if you give me bbox of an area that you've noticed has this issue: the results were correct before, but now they're not.

[Randomdude11]

Thank you for the swift reply.

My title was a bit misleading: it is returning only nan and zero values.

Here is an example bbox:

(-12542349.0, 5651060.955845314, -12532964.365026416, 5660334.955926162)

It corresponds to an area around Dillion, MT, where the elevation is over 1000 meters. My API call returns an array with only 0.0 non-nan values. I have data that the same call a few days ago has returned the correct raster of ~1500 values.

[cheginit]

The data looks fine, are you using the latest version?

dem = py3dep.get_map(
    geometry=(-12542349.0, 5651060.955845314, -12532964.365026416, 5660334.955926162),
    layers="DEM",
    resolution=30,
    geo_crs=3857,
    crs=3857
)
_ = dem.plot.imshow(cmap="terrain", robust=True)

[Randomdude11]

Interesting - I apologize again, I did not manually test the bounding box. I am passing an entire polygon, and I just double-checked - what I sent you is indeed the bounding box of the polygon, and it indeed returns correct results. However, when I pass the full polygon, I get that error. Here is the full polygon:

Polygon(
        [(-12541693.047336467, 5657397.111385011), (-12541642.3558815, 5657465.711964229), (-12541513.410203904, 5657608.98964934), (-12541487.208918229, 5657632.9898612015), (-12541385.10881431, 5657761.742320256), (-12541048.10881431, 5658162.742320256), (-12540837.742145801, 5658407.646141846), (-12540532.795952786, 5658760.066109013), (-12540395.752199564, 5658903.7078896165), (-12540245.14263526, 5659033.055137645), (-12540082.451289387, 5659146.83333156), (-12539909.281239146, 5659243.921359308), (-12539823.537948461, 5659281.359303673), (-12539733.18679197, 5659418.213337015), (-12539609.995760709, 5659570.133663869), (-12539472.554478573, 5659709.294397768), (-12539322.177427655, 5659834.364611857), (-12539160.302807152, 5659944.148140364), (-12538988.478778483, 5660037.595018677), (-12538808.34865875, 5660113.811525153), (-12538621.635204127, 5660172.06872863), (-12538430.1241335, 5660211.809459898), (-12538235.647049932, 5660232.6536404295), (-12538040.063923303, 5660234.401917444), (-12537689.307765774, 5660222.920841445), (-12537490.419605523, 5660206.4220577), (-12537434.281101108, 5660196.056120345), (-12537266.511332763, 5660219.195710618), (-12537071.98436909, 5660226.9188576145), (-12537058.796882823, 5660226.157130789), (-12536922.802282693, 5660239.693298084), (-12536764.16522507, 5660246.963001482), (-12535742.387839593, 5660252.466185602), (-12535728.846747495, 5660257.071922115), (-12535542.911471196, 5660301.055943331), (-12535353.627529556, 5660327.0964988535), (-12535162.722447129, 5660334.955926162), (-12534971.938544016, 5660324.562495168), (-12534783.017034367, 5660296.011062876), (-12534597.682134947, 5660249.562207649), (-12534417.625328863, 5660185.639851019), (-12534343.668538718, 5660151.119872508), (-12534190.954516416, 5660095.299597844), (-12534017.66592188, 5660012.330880295), (-12533853.13795905, 5659913.117501482), (-12533698.888922615, 5659798.575020947), (-12533556.342251416, 5659669.7604580335), (-12533426.81339269, 5659527.862537525), (-12533311.497662866, 5659374.190719862), (-12533211.459216984, 5659210.163117204), (-12533127.621228456, 5659037.293406821), (-12533060.757369857, 5658857.176862601), (-12533011.484673329, 5658671.475633566), (-12532980.257836493, 5658481.903405248), (-12532967.365026416, 5658290.209585482), (-12532964.365026416, 5658133.209585482), (-12532970.396285094, 5657935.174382808), (-12532995.991932109, 5657738.707641517), (-12533040.900782548, 5657545.737403574), (-12533104.68211984, 5657358.15739773), (-12533186.710020771, 5657177.808455264), (-12533286.17949802, 5657006.460444843), (-12533402.114399977, 5656845.794903772), (-12533533.376990275, 5656697.388536092), (-12533678.679113064, 5656562.697739477), (-12533836.594834423, 5656443.044312753), (-12534005.574435886, 5656339.602484321), (-12534183.959622715, 5656253.38738878), (-12534369.999797719, 5656185.245104813), (-12534561.869240867, 5656135.844352135), (-12534757.685026148, 5656105.669928955), (-12534955.525499806, 5656095.017954369), (-12534984.325512893, 5656094.895920415), (-12534983.0, 5655747.0), (-12534984.881683078, 5655567.620248012), (-12534999.881683078, 5655062.620248012), (-12535001.42362164, 5655062.666048167), (-12535008.630546656, 5654915.965719341), (-12535037.429439193, 5654721.819355967), (-12535085.119328536, 5654531.430645491), (-12535151.240934977, 5654346.633135269), (-12535235.157471303, 5654169.206526348), (-12535336.060775395, 5654000.859533961), (-12535452.979093274, 5653843.213431673), (-12535542.009746207, 5653744.9832435325), (-12535573.878985226, 5653617.93226566), (-12535641.742774786, 5653429.62086313), (-12535728.089896234, 5653249.036110523), (-12535832.055438982, 5653077.986865634), (-12535952.598014547, 5652918.186472228), (-12536088.510187777, 5652771.235598042), (-12536238.430571344, 5652638.606201424), (-12536400.857462307, 5652521.626787216), (-12536574.16388417, 5652421.469099556), (-12536756.613883771, 5652339.136384903), (-12536946.37991975, 5652275.453342858), (-12537141.561168436, 5652231.057865406), (-12537340.202563751, 5652206.394647378), (-12537398.876275474, 5652205.021301712), (-12537498.424402874, 5652085.028352422), (-12537633.716451012, 5651950.437247295), (-12537781.220451243, 5651829.353500309), (-12537939.593427442, 5651722.879539745), (-12538107.393444978, 5651631.984776512), (-12538283.092739064, 5651557.496777977), (-12538465.091624562, 5651500.093733229), (-12538569.172214773, 5651477.901799243), (-12538624.523247592, 5651434.732043773), (-12538789.60916893, 5651330.162901768), (-12538964.112180028, 5651242.204013633), (-12539146.366297716, 5651171.695124341), (-12539334.63153889, 5651119.30938344), (-12539527.110532142, 5651085.546918471), (-12539721.965677304, 5651070.730060254), (-12540042.173892124, 5651060.955845314), (-12540241.66287224, 5651064.743391539), (-12540439.78175578, 5651088.388828271), (-12540634.558754718, 5651131.6568231275), (-12540824.055341296, 5651194.116749238), (-12541006.38554132, 5651275.146971088), (-12541179.73470442, 5651373.9410313675), (-12541342.37756444, 5651489.515677285), (-12541492.695410233, 5651620.720646435), (-12541629.192195976, 5651766.250114847), (-12541750.509430626, 5651924.655693255), (-12541855.439698381, 5652094.360842273), (-12541872.17919538, 5652128.665871499), (-12541884.425677594, 5652147.649575168), (-12541975.050461601, 5652324.511693423), (-12542047.675785132, 5652509.49445676), (-12542101.584599117, 5652700.771481319), (-12542136.244647546, 5652896.454238334), (-12542151.31372257, 5653094.61070007), (-12542146.643043216, 5653293.284415252), (-12542122.278724344, 5653490.513825624), (-12542078.46132133, 5653684.351632934), (-12542015.62345501, 5653872.884025128), (-12541934.385540295, 5654054.2495719185), (-12541911.38300375, 5654094.374899422), (-12541997.669507949, 5654208.175618055), (-12542101.301167594, 5654377.397991321), (-12542187.653759932, 5654556.056778653), (-12542255.877235822, 5654742.393274896), (-12542305.300007928, 5654934.573196042), (-12542335.435561785, 5655130.704735801), (-12542345.98724502, 5655328.857188411), (-12542349.0, 5655919.0), (-12542338.988844346, 5656118.860950109), (-12542309.055600623, 5656316.721061136), (-12542259.49993519, 5656510.599524713), (-12542190.81795753, 5656698.555393364), (-12542103.69725361, 5656878.707011632), (-12541999.01000236, 5657049.250853623), (-12541877.804244144, 5657208.479578391), (-12541741.293388676, 5657354.799122388), (-12541693.047336467, 5657397.111385011)],
    )

This is how it looks in relation to the bbox:

If you try the api call with this polygon, you should get only 0 or nan values.

[cheginit]

The results are fine for this too. Please show me the output of py3dep.show_versions():

import py3dep
from shapely import Polygon


geom = Polygon(
        [(-12541693.047336467, 5657397.111385011), (-12541642.3558815, 5657465.711964229), (-12541513.410203904, 5657608.98964934), (-12541487.208918229, 5657632.9898612015), (-12541385.10881431, 5657761.742320256), (-12541048.10881431, 5658162.742320256), (-12540837.742145801, 5658407.646141846), (-12540532.795952786, 5658760.066109013), (-12540395.752199564, 5658903.7078896165), (-12540245.14263526, 5659033.055137645), (-12540082.451289387, 5659146.83333156), (-12539909.281239146, 5659243.921359308), (-12539823.537948461, 5659281.359303673), (-12539733.18679197, 5659418.213337015), (-12539609.995760709, 5659570.133663869), (-12539472.554478573, 5659709.294397768), (-12539322.177427655, 5659834.364611857), (-12539160.302807152, 5659944.148140364), (-12538988.478778483, 5660037.595018677), (-12538808.34865875, 5660113.811525153), (-12538621.635204127, 5660172.06872863), (-12538430.1241335, 5660211.809459898), (-12538235.647049932, 5660232.6536404295), (-12538040.063923303, 5660234.401917444), (-12537689.307765774, 5660222.920841445), (-12537490.419605523, 5660206.4220577), (-12537434.281101108, 5660196.056120345), (-12537266.511332763, 5660219.195710618), (-12537071.98436909, 5660226.9188576145), (-12537058.796882823, 5660226.157130789), (-12536922.802282693, 5660239.693298084), (-12536764.16522507, 5660246.963001482), (-12535742.387839593, 5660252.466185602), (-12535728.846747495, 5660257.071922115), (-12535542.911471196, 5660301.055943331), (-12535353.627529556, 5660327.0964988535), (-12535162.722447129, 5660334.955926162), (-12534971.938544016, 5660324.562495168), (-12534783.017034367, 5660296.011062876), (-12534597.682134947, 5660249.562207649), (-12534417.625328863, 5660185.639851019), (-12534343.668538718, 5660151.119872508), (-12534190.954516416, 5660095.299597844), (-12534017.66592188, 5660012.330880295), (-12533853.13795905, 5659913.117501482), (-12533698.888922615, 5659798.575020947), (-12533556.342251416, 5659669.7604580335), (-12533426.81339269, 5659527.862537525), (-12533311.497662866, 5659374.190719862), (-12533211.459216984, 5659210.163117204), (-12533127.621228456, 5659037.293406821), (-12533060.757369857, 5658857.176862601), (-12533011.484673329, 5658671.475633566), (-12532980.257836493, 5658481.903405248), (-12532967.365026416, 5658290.209585482), (-12532964.365026416, 5658133.209585482), (-12532970.396285094, 5657935.174382808), (-12532995.991932109, 5657738.707641517), (-12533040.900782548, 5657545.737403574), (-12533104.68211984, 5657358.15739773), (-12533186.710020771, 5657177.808455264), (-12533286.17949802, 5657006.460444843), (-12533402.114399977, 5656845.794903772), (-12533533.376990275, 5656697.388536092), (-12533678.679113064, 5656562.697739477), (-12533836.594834423, 5656443.044312753), (-12534005.574435886, 5656339.602484321), (-12534183.959622715, 5656253.38738878), (-12534369.999797719, 5656185.245104813), (-12534561.869240867, 5656135.844352135), (-12534757.685026148, 5656105.669928955), (-12534955.525499806, 5656095.017954369), (-12534984.325512893, 5656094.895920415), (-12534983.0, 5655747.0), (-12534984.881683078, 5655567.620248012), (-12534999.881683078, 5655062.620248012), (-12535001.42362164, 5655062.666048167), (-12535008.630546656, 5654915.965719341), (-12535037.429439193, 5654721.819355967), (-12535085.119328536, 5654531.430645491), (-12535151.240934977, 5654346.633135269), (-12535235.157471303, 5654169.206526348), (-12535336.060775395, 5654000.859533961), (-12535452.979093274, 5653843.213431673), (-12535542.009746207, 5653744.9832435325), (-12535573.878985226, 5653617.93226566), (-12535641.742774786, 5653429.62086313), (-12535728.089896234, 5653249.036110523), (-12535832.055438982, 5653077.986865634), (-12535952.598014547, 5652918.186472228), (-12536088.510187777, 5652771.235598042), (-12536238.430571344, 5652638.606201424), (-12536400.857462307, 5652521.626787216), (-12536574.16388417, 5652421.469099556), (-12536756.613883771, 5652339.136384903), (-12536946.37991975, 5652275.453342858), (-12537141.561168436, 5652231.057865406), (-12537340.202563751, 5652206.394647378), (-12537398.876275474, 5652205.021301712), (-12537498.424402874, 5652085.028352422), (-12537633.716451012, 5651950.437247295), (-12537781.220451243, 5651829.353500309), (-12537939.593427442, 5651722.879539745), (-12538107.393444978, 5651631.984776512), (-12538283.092739064, 5651557.496777977), (-12538465.091624562, 5651500.093733229), (-12538569.172214773, 5651477.901799243), (-12538624.523247592, 5651434.732043773), (-12538789.60916893, 5651330.162901768), (-12538964.112180028, 5651242.204013633), (-12539146.366297716, 5651171.695124341), (-12539334.63153889, 5651119.30938344), (-12539527.110532142, 5651085.546918471), (-12539721.965677304, 5651070.730060254), (-12540042.173892124, 5651060.955845314), (-12540241.66287224, 5651064.743391539), (-12540439.78175578, 5651088.388828271), (-12540634.558754718, 5651131.6568231275), (-12540824.055341296, 5651194.116749238), (-12541006.38554132, 5651275.146971088), (-12541179.73470442, 5651373.9410313675), (-12541342.37756444, 5651489.515677285), (-12541492.695410233, 5651620.720646435), (-12541629.192195976, 5651766.250114847), (-12541750.509430626, 5651924.655693255), (-12541855.439698381, 5652094.360842273), (-12541872.17919538, 5652128.665871499), (-12541884.425677594, 5652147.649575168), (-12541975.050461601, 5652324.511693423), (-12542047.675785132, 5652509.49445676), (-12542101.584599117, 5652700.771481319), (-12542136.244647546, 5652896.454238334), (-12542151.31372257, 5653094.61070007), (-12542146.643043216, 5653293.284415252), (-12542122.278724344, 5653490.513825624), (-12542078.46132133, 5653684.351632934), (-12542015.62345501, 5653872.884025128), (-12541934.385540295, 5654054.2495719185), (-12541911.38300375, 5654094.374899422), (-12541997.669507949, 5654208.175618055), (-12542101.301167594, 5654377.397991321), (-12542187.653759932, 5654556.056778653), (-12542255.877235822, 5654742.393274896), (-12542305.300007928, 5654934.573196042), (-12542335.435561785, 5655130.704735801), (-12542345.98724502, 5655328.857188411), (-12542349.0, 5655919.0), (-12542338.988844346, 5656118.860950109), (-12542309.055600623, 5656316.721061136), (-12542259.49993519, 5656510.599524713), (-12542190.81795753, 5656698.555393364), (-12542103.69725361, 5656878.707011632), (-12541999.01000236, 5657049.250853623), (-12541877.804244144, 5657208.479578391), (-12541741.293388676, 5657354.799122388), (-12541693.047336467, 5657397.111385011)],
    )
dem = py3dep.get_map(
    geometry=geom,
    layers="DEM",
    resolution=30,
    geo_crs=3857,
    crs=3857
)

[Randomdude11]

Very strange.

This is the output of py3dep.show_versions():

SYS INFO
--------
commit: None
python: 3.10.16 | packaged by conda-forge | (main, Dec  5 2024, 14:16:10) [GCC 13.3.0]
python-bits: 64
OS: Linux
OS-release: 6.12.30-1-insait
machine: x86_64
processor: 
byteorder: little
LC_ALL: None
LANG: C.utf8
LOCALE: ('en_US', 'UTF-8')

PACKAGE                VERSION
-------------------------------
async-retriever        0.19.3
pygeoogc               0.19.4
pygeoutils             0.19.5
py3dep                 0.19.0
pynhd                  N/A
pygridmet              N/A
pydaymet               N/A
hydrosignatures        N/A
pynldas2               N/A
pygeohydro             N/A
aiohttp                3.12.14
aiohttp-client-cache   0.13.0
aiosqlite              0.20.0
cytoolz                1.0.1
ujson                  5.10.0
defusedxml             0.7.1
joblib                 1.5.1
multidict              6.6.3
owslib                 0.34.1
pyproj                 3.7.1
requests               2.32.3
requests-cache         1.2.1
shapely                2.1.0
url-normalize          2.2.1
urllib3                2.3.0
yarl                   1.20.1
geopandas              1.1.1
netcdf4                1.7.2
numpy                  1.26.4
rasterio               1.4.3
rioxarray              0.19.0
scipy                  1.15.2
xarray                 2025.6.1
click                  8.2.1
networkx               3.4.2
pyarrow                21.0.0
folium                 0.20.0
h5netcdf               N/A
matplotlib             3.10.1
pandas                 2.3.1
numba                  N/A
py7zr                  N/A
pyogrio                0.10.0
-------------------------------

[Randomdude11]

It is extremely strange - I did some experiments in jupyter notebook. I have the api call nested in some methods, when I run the entire program and get the dem raster, it is indeed corrupted with only 0 or nan values. Any consecutive runs of:

from shapely import Polygon

import py3dep
polygon = Polygon(
    [(-12541693.047336467, 5657397.111385011), (-12541642.3558815, 5657465.711964229), (-12541513.410203904, 5657608.98964934), (-12541487.208918229, 5657632.9898612015), (-12541385.10881431, 5657761.742320256), (-12541048.10881431, 5658162.742320256), (-12540837.742145801, 5658407.646141846), (-12540532.795952786, 5658760.066109013), (-12540395.752199564, 5658903.7078896165), (-12540245.14263526, 5659033.055137645), (-12540082.451289387, 5659146.83333156), (-12539909.281239146, 5659243.921359308), (-12539823.537948461, 5659281.359303673), (-12539733.18679197, 5659418.213337015), (-12539609.995760709, 5659570.133663869), (-12539472.554478573, 5659709.294397768), (-12539322.177427655, 5659834.364611857), (-12539160.302807152, 5659944.148140364), (-12538988.478778483, 5660037.595018677), (-12538808.34865875, 5660113.811525153), (-12538621.635204127, 5660172.06872863), (-12538430.1241335, 5660211.809459898), (-12538235.647049932, 5660232.6536404295), (-12538040.063923303, 5660234.401917444), (-12537689.307765774, 5660222.920841445), (-12537490.419605523, 5660206.4220577), (-12537434.281101108, 5660196.056120345), (-12537266.511332763, 5660219.195710618), (-12537071.98436909, 5660226.9188576145), (-12537058.796882823, 5660226.157130789), (-12536922.802282693, 5660239.693298084), (-12536764.16522507, 5660246.963001482), (-12535742.387839593, 5660252.466185602), (-12535728.846747495, 5660257.071922115), (-12535542.911471196, 5660301.055943331), (-12535353.627529556, 5660327.0964988535), (-12535162.722447129, 5660334.955926162), (-12534971.938544016, 5660324.562495168), (-12534783.017034367, 5660296.011062876), (-12534597.682134947, 5660249.562207649), (-12534417.625328863, 5660185.639851019), (-12534343.668538718, 5660151.119872508), (-12534190.954516416, 5660095.299597844), (-12534017.66592188, 5660012.330880295), (-12533853.13795905, 5659913.117501482), (-12533698.888922615, 5659798.575020947), (-12533556.342251416, 5659669.7604580335), (-12533426.81339269, 5659527.862537525), (-12533311.497662866, 5659374.190719862), (-12533211.459216984, 5659210.163117204), (-12533127.621228456, 5659037.293406821), (-12533060.757369857, 5658857.176862601), (-12533011.484673329, 5658671.475633566), (-12532980.257836493, 5658481.903405248), (-12532967.365026416, 5658290.209585482), (-12532964.365026416, 5658133.209585482), (-12532970.396285094, 5657935.174382808), (-12532995.991932109, 5657738.707641517), (-12533040.900782548, 5657545.737403574), (-12533104.68211984, 5657358.15739773), (-12533186.710020771, 5657177.808455264), (-12533286.17949802, 5657006.460444843), (-12533402.114399977, 5656845.794903772), (-12533533.376990275, 5656697.388536092), (-12533678.679113064, 5656562.697739477), (-12533836.594834423, 5656443.044312753), (-12534005.574435886, 5656339.602484321), (-12534183.959622715, 5656253.38738878), (-12534369.999797719, 5656185.245104813), (-12534561.869240867, 5656135.844352135), (-12534757.685026148, 5656105.669928955), (-12534955.525499806, 5656095.017954369), (-12534984.325512893, 5656094.895920415), (-12534983.0, 5655747.0), (-12534984.881683078, 5655567.620248012), (-12534999.881683078, 5655062.620248012), (-12535001.42362164, 5655062.666048167), (-12535008.630546656, 5654915.965719341), (-12535037.429439193, 5654721.819355967), (-12535085.119328536, 5654531.430645491), (-12535151.240934977, 5654346.633135269), (-12535235.157471303, 5654169.206526348), (-12535336.060775395, 5654000.859533961), (-12535452.979093274, 5653843.213431673), (-12535542.009746207, 5653744.9832435325), (-12535573.878985226, 5653617.93226566), (-12535641.742774786, 5653429.62086313), (-12535728.089896234, 5653249.036110523), (-12535832.055438982, 5653077.986865634), (-12535952.598014547, 5652918.186472228), (-12536088.510187777, 5652771.235598042), (-12536238.430571344, 5652638.606201424), (-12536400.857462307, 5652521.626787216), (-12536574.16388417, 5652421.469099556), (-12536756.613883771, 5652339.136384903), (-12536946.37991975, 5652275.453342858), (-12537141.561168436, 5652231.057865406), (-12537340.202563751, 5652206.394647378), (-12537398.876275474, 5652205.021301712), (-12537498.424402874, 5652085.028352422), (-12537633.716451012, 5651950.437247295), (-12537781.220451243, 5651829.353500309), (-12537939.593427442, 5651722.879539745), (-12538107.393444978, 5651631.984776512), (-12538283.092739064, 5651557.496777977), (-12538465.091624562, 5651500.093733229), (-12538569.172214773, 5651477.901799243), (-12538624.523247592, 5651434.732043773), (-12538789.60916893, 5651330.162901768), (-12538964.112180028, 5651242.204013633), (-12539146.366297716, 5651171.695124341), (-12539334.63153889, 5651119.30938344), (-12539527.110532142, 5651085.546918471), (-12539721.965677304, 5651070.730060254), (-12540042.173892124, 5651060.955845314), (-12540241.66287224, 5651064.743391539), (-12540439.78175578, 5651088.388828271), (-12540634.558754718, 5651131.6568231275), (-12540824.055341296, 5651194.116749238), (-12541006.38554132, 5651275.146971088), (-12541179.73470442, 5651373.9410313675), (-12541342.37756444, 5651489.515677285), (-12541492.695410233, 5651620.720646435), (-12541629.192195976, 5651766.250114847), (-12541750.509430626, 5651924.655693255), (-12541855.439698381, 5652094.360842273), (-12541872.17919538, 5652128.665871499), (-12541884.425677594, 5652147.649575168), (-12541975.050461601, 5652324.511693423), (-12542047.675785132, 5652509.49445676), (-12542101.584599117, 5652700.771481319), (-12542136.244647546, 5652896.454238334), (-12542151.31372257, 5653094.61070007), (-12542146.643043216, 5653293.284415252), (-12542122.278724344, 5653490.513825624), (-12542078.46132133, 5653684.351632934), (-12542015.62345501, 5653872.884025128), (-12541934.385540295, 5654054.2495719185), (-12541911.38300375, 5654094.374899422), (-12541997.669507949, 5654208.175618055), (-12542101.301167594, 5654377.397991321), (-12542187.653759932, 5654556.056778653), (-12542255.877235822, 5654742.393274896), (-12542305.300007928, 5654934.573196042), (-12542335.435561785, 5655130.704735801), (-12542345.98724502, 5655328.857188411), (-12542349.0, 5655919.0), (-12542338.988844346, 5656118.860950109), (-12542309.055600623, 5656316.721061136), (-12542259.49993519, 5656510.599524713), (-12542190.81795753, 5656698.555393364), (-12542103.69725361, 5656878.707011632), (-12541999.01000236, 5657049.250853623), (-12541877.804244144, 5657208.479578391), (-12541741.293388676, 5657354.799122388), (-12541693.047336467, 5657397.111385011)],
)
dem = py3dep.get_map(
        geometry=polygon,
        layers=["DEM"],
        resolution=30,
        geo_crs="EPSG:3857",
        crs="EPSG:3857"
    )
_ = dem.plot.imshow(cmap="terrain", robust=True)

Displays the corrupt raster:

However, after ONLY restarting the notebook kernel (no change to any code at all), and running that code snippet again, I also get the correct raster:

It is beyond me, because either way the request is called with the same parameters. I am extremely confused.

[Randomdude11]

I have pinned down the issue to this:
If I add this to the beginning of the code snippet:

import os
os.chdir('/path/to/my/project')

I get the corrupted response. Without it, the response works fine.
What's interesting is that this only happens for very sparse areas - for most areas, the response is correct despite changing the directory.