Created attachment 132690 [details] Screenshot for plasma task buttons 5.19 and 5.20 SUMMARY Task button is not highlighted when mouse on button. See attached screenshot SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux KDE Plasma Version: 5.20.1 KDE Frameworks Version: 5.75 Qt Version: 5.15.1
Created attachment 132717 [details] Video I'm running git master and see the highlight as I move my mouse cursor over each item, see video.
Looks like you're using a non-default Plasma theme. Which one is it?
(In reply to Nate Graham from comment #2) > Looks like you're using a non-default Plasma theme. Which one is it? When this bug occurs it is reproduced on any theme. It is strange reproducibility. After fresh install of plasma-desktop all works as expected. But after 1-2 days buttons stops highlighting. May be changing some settings affects this behavior.
Seems like a deeper issue. When this happens to you, is it just the task manager that stops highlighting on hover? Or is it other things too? What about panel widgets and icons-only buttons? Do they also fail to highlight when you hover the mouse over them?
This is not a bug. I found problem in my system.