and shows correct time when mpv is windowed. Also shows wrong time when mpv is fullscreen on another workspace.
after playing around i found that it was just that both panels and appletts on them froze when i launched fullscreen source-engine game from steam exactly 4 hours ago, and whenever mpv goes fullscreen they return to that exact state
It seems mpv disables compositing when playing videos (for some reason). Might be Bug 353983 then
Also looks related to https://bugs.kde.org/show_bug.cgi?id=373797
Can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved. I've set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved" when you respond, thanks.
I have since switched my graphics card and upgraded my plasma, and I no longer have this issue with mpv and compositing. Full screen games no longer cause issues for me as well.