SUMMARY STEPS TO REPRODUCE 1. Open app dashboard launcher 2. Select 'all apps' category OBSERVED RESULT It's empty. EXPECTED RESULT It's not empty, installed apps are listed. SOFTWARE VERSIONS (available in About System) KDE Plasma Version: 5.13.90 KDE Frameworks Version: 5.50 Qt Version: 5.12-beta1 ADDITIONAL INFORMATION Apps are sorted to categories correctly only 'all apps' is empty.
This https://bugs.kde.org/show_bug.cgi?id=399417 might be related/ caused by the same bug.
Same thing on my Arch running Qt 5.12 beta2.
It looks like it's fixed now.
Same bug indeed *** This bug has been marked as a duplicate of bug 399417 ***