EP W10 taskbar looses windows when monitors are connected (in "show apps on taskbar where window is open" mode)

[hacker1024]

Before reporting your issue

• [x] I have confirmed that this issue does not happen when ExplorerPatcher is not installed
• [x] I do not have "register as shell extension" enabled
• [x] I have tried my best to check existing issues

Repro ExplorerPatcher versions

ExplorerPatcher 68.2 ExplorerPatcher 67.1 Possibly older versions too

Repro Windows Versions

Windows 11 24H2 26100.4202 x64 And many older versions too

3rd party tweak software installed

Mica For Everyone

Describe the bug

1. Enable the EP W10 taskbar
2. In the Windows settings, set Personalisation -> Taskbar -> When using multiple displays, show my taskbar apps on to "taskbar where window is open"
3. Connect a new monitor (or switch from duplicate to extend mode)

Expected outcome

I expect each window entry to remain visible on its appropriate taskbar.

Actual outcome

All the window entries disappear from the EP W10 taskbar. Each one is restored when its window is made active, e.g. by clicking it or with Alt+Tab.

Additional info

No response

Crash Dumps

No response

Media

No response

[pyrates999]

That's a preview update: https://support.microsoft.com/en-us/topic/may-28-2025-kb5058499-os-build-26100-4202-preview-d4c2f1ee-8138-4038-b705-546945076f92

Does it happen on this build? https://support.microsoft.com/en-us/topic/may-13-2025-kb5058411-os-build-26100-4061-356568c2-c730-469e-819d-b680d43b1265

[hacker1024]

Sorry, my bad. This issue has been happening since at least March, though, so I would imagine so. I always keep my system up to date, but I'm not on an Insider channel or anything.

[pyrates999]

If it's a preview update, I always check if it started happening after installing the preview update.

[Amrsatrio]

I'll have this checked later.

[MoncholoX]

This is sadly still happening. Do we have an update on this?