Windows 11 taskbar thumbnails do not display title of window in the preview

[brook-ly]

After resetting EP settings to default, I've found myself stuck with this taskbar bug. Uninstalling doesn't solve the problem. Is there any way to fix it?

[valinet]

What’s the “bug”?

[Antonomasia3rd]

Oh! The mica brush
Windows 11 breaks that feature in the Latest Dev Build :(

[valinet]

Okay =)))))) Nice. Nice. Nice.

[valinet]

@abbyurtia And this is exactly the reason why fully supporting Windows Insider Preview builds is a giant paint in the ass. It's too volatile, and this project uses TONS of undocumented things. Also, you say Mica is broken in that build, so it also does not work for the Settings app, for example? if it works there but not in EP, it's likely because the attribute number for Mica that gets passed to DwmSetWindowAttribute may have changed. It is1029 in build 22000, maybe now it's 1030 or somewhere around there, they have a habit, unfortunately, of messing with these values however they please, as if there aren't 2 million numbers to choose from anyway. it happened before with attribute 19 (prior to Windows 10 2004) or 20 (after Windows 10 2004) which controls whether dwm should display a dark title bar for a window. Yeah, overnight, they figured 19 wasn't cool anymore and made it a 20. Unfortunately, almost all the cool stuff nowadays is undocumented when it comes to Microsoft Windows stuff.

[Antonomasia3rd]

Mica effect still works on UWP Apps yeaahh (Settings, for example) but not on some programs (including EP)

[valinet]

Yeah, then it means the attribute number likely changed. Typical Microsoft.