SUMMARY STEPS TO REPRODUCE 1. open the settings windows 2. go to regional settings (I guess it is called like that in english) 3. click on Add language OBSERVED RESULT the opening window is flickering and becoming unusable EXPECTED RESULT the windows should open as normal. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Manjaro 5.4.31-1-MANJARO (available in About System) KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.2 ADDITIONAL INFORMATION
Created attachment 127489 [details] A text file with a link to the video
In my case, it doesn't flicker but adding a new language does nothing. The only language that appears is American English, even though Plasma uses the French localization.
*** This bug has been marked as a duplicate of bug 411721 ***