SUMMARY App cannot be opened from Favorites until plasmashell restart after overriding .desktop file STEPS TO REPRODUCE 1. Add any application to Favorites that does not have an overriding .desktop file in ~/.local/share/applications/ 2. Create an overriding .desktop file in ~/.local/share/applications/ (for example, using the KDE Menu Editor) 3. Click the app icon in the Favorites folder OBSERVED RESULT Nothing happens; neither the app nor an error dialog opens EXPECTED RESULT App opens normally SOFTWARE/OS VERSIONS Linux/KDE Plasma: Debian 13 Stable, Linux 6.12.57 KDE Plasma Version: 6.3.6 KDE Frameworks Version: 6.13.0 Qt Version: 6.8.2 ADDITIONAL INFORMATION The same behavior is observed in the Application Dashboard and Application Menu as well. Running the app from KRunner, the Task Manager widget, or directly from Dolphin works as expected. Also tested on KDE Neon Testing (neon-testing-20251118-0031.iso) in a virtual machine; the same behavior was observed. The problem disappears after restarting plasmashell or changing the widget using the "Show Alternatives" button in the current session. Running kbuildsycoca6 --noincremental has no effect. dbus-monitor --session and plasmashell --replace with QT_LOGGING_RULES="org.kde.plasma.*=true" output no logs when trying to run the app.
Thank you for the bug report! Debian advises users to not submit bugs upstream (https://www.debian.org/Bugs/Reporting), and Plasma 6.3.6 is no longer eligible for support or maintenance from KDE. It's possible that the issue exists only in Debian at this point. Could you report the bug to Debian using the report bug utility (https://packages.debian.org/stable/utils/reportbug)? If necessary, the maintainer of the package will forward the bug upstream. Thanks for understanding! Thanks again!
This issue exists not only in Debian, but also in the latest KDE Neon Testing (as specified in the first message) and in Manjaro.
Indeed, I can reproduce this issue as well, exactly as written.