SUMMARY STEPS TO REPRODUCE 1. Go to Settings > Global Theme 2. Install a theme that also includes a SDDM theme, like McMojave 3. When the admin password is asked, press cancel OBSERVED RESULT A blank window will appear, with no message, only with a exclamation icon. EXPECTED RESULT A message being shown. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Kubuntu 20.04 (available in About System) KDE Plasma Version: KDE 5.18.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 ADDITIONAL INFORMATION
This also happens if a theme installation is from a tar.gz file, I forgot to mention that.
Created attachment 129369 [details] installation cancelled, but no message is shown
*** This bug has been marked as a duplicate of bug 407686 ***