https://bugs.kde.org/show_bug.cgi?id=394489
--- Comment #17 from Juha Nikkanen <nik...@gmail.com> --- I were able to trigger this glitch also by following steps. After restarting plasmashell: 1. Hover over any such app's icon on the panel which has more than one instance running and click for text list of available windows / instances. At this point there appears at least one, sometimes two log entries onto cli: trying to show an empty dialog trying to show an empty dialog 2. Click again on app's icon on the panel so that text list disappears 3. Hover over pager and wait for a list of open windows 4. Then quickly move mouse sideways alongside panel and graphics get garbled I don't know is it for any help but I attach my plasmashell log here -- You are receiving this mail because: You are watching all bug changes.