Rear screen wallpaper fails to apply on Xiaomi 17 Pro/ pro max

[Dantek25]

When attempting to apply a wallpaper to the rear/back screen on the Xiaomi 17 Pro, the Theme Manager shows a "Couldn't apply" error. The wallpaper previews correctly in the store but fails at the application step.
Device information
Device: Xiaomi 17 Pro
Processor: Snapdragon (canoe)
Architecture: arm64-v8a
API level: 36
Module version: HyperOS Theme Manager V5.1
Steps to reproduce
Open the modded Theme Manager
Browse to a rear screen wallpaper
Tap Apply
"Couldn't apply" error appears
Expected behavior
The wallpaper should be applied to the secondary rear display.

Request
Please add support for rear screen wallpaper application on devices with a secondary rear display (Xiaomi 17 Pro / 17 Pro Max).

[anggizz138-svg]

https://github.com/Mods-Center/HyperOS-Theme-Manager.git

[t-owl]

https://github.com/Mods-Center/HyperOS-Theme-Manager.git

What do you mean??