🐞 Moving windows to the edges of the screen doesn't always tile them

[thealonealex]

Bug Description

I've noticed this on stage manager specifically, but i'm pretty sure it happens when i'm using the normal desktop too. Sometimes, apps while tile when i drag them to the screen edges, and sometimes they don't do anything.

Affected Scope

User interface

Steps to Reproduce

1. Drag app to the top, left or right
2. Nothing happens?
3. Switch to a different app and drag it to the top, left or right
4. Tiles normally

Reproducibility

Often (≥70%)

Expected vs Actual Behavior

I expected the apps to tile every time i move them to an edge

Screen Recordings / Screenshots

No response

Severity

Major (workaround exists)

macOS Version

26.3RC

Loop Version

Version 1.4.2 (1693)

Did You Try the Development Build?

No

Additional Context

No response

Final Checks

• My issue is written in English.
• My issue title is descriptive.
• This is a single bug (multiple bugs should be reported individually).
• I have looked to see if this is a duplicate of another bug report.
• I can help with further investigation.
• I can help with developing a fix for this issue.

[mrkai77]

Thanks for reporting this, @thealonealex! I’m unable to reproduce it on my side, but I do have a few questions:

• When you drag a window to the side, does Loop’s preview window appear, or does Loop seem to completely ignore the window?
• Could you share a screenshot of your configuration in Loop’s General and Advanced tabs so we can try to replicate your setup?

[thealonealex]

Loop seems to completely ignore the window sometimes, while other times it just works as expected

[YonglinChann]

I also encountered this problem. I am using the latest Version 🧪 1.4.3 (1716), the official version of macOS 26.3. When I put the window to the edge, there was no response for a long time. I found that I needed to wait a few seconds before there was a response after many attempts.

Thanks for reporting this, @thealonealex! I’m unable to reproduce it on my side, but I do have a few questions:

• When you drag a window to the side, does Loop’s preview window appear, or does Loop seem to completely ignore the window?
• Could you share a screenshot of your configuration in Loop’s General and Advanced tabs so we can try to replicate your setup?