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.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/6234
Git commit 23bd030b2051b4d5d5a74ad23e3487fcde26e443 by Nate Graham, on behalf of Alexey Rochev. Committed on 09/02/2026 at 15:00. Pushed by ngraham into branch 'master'. KAStatsFavoritesModel: retrieve launched entry by normalized id from m_items list The problem with m_itemEntries map is that entries are stored there several times with different keys: normalized id, url and path. When desktop entry is overriden in user directory, and ksycoca is updated, entry is reloaded but is still stored in m_itemEntries with the old keys. This is not a problem for normalized id, but url and path keys will become incorrect in this case. Then in trigger() we will get a url of entry found via its normalized id (which didn't change) and try to find it again using that url. Which doesn't work because entry->url() returns new url for overridden desktop entry, but m_itemEntries contains key with the old url. This change sidesteps this issue by always operating on an entry found via normalized id, which is simpler and more efficient anyway. FIXED-IN: 6.6.0 M +1 -12 applets/kicker/kastatsfavoritesmodel.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/23bd030b2051b4d5d5a74ad23e3487fcde26e443
Git commit c5672b660a5dd45f7f34a328773452a975dcbcfe by Nate Graham. Committed on 09/02/2026 at 15:02. Pushed by ngraham into branch 'Plasma/6.6'. KAStatsFavoritesModel: retrieve launched entry by normalized id from m_items list The problem with m_itemEntries map is that entries are stored there several times with different keys: normalized id, url and path. When desktop entry is overriden in user directory, and ksycoca is updated, entry is reloaded but is still stored in m_itemEntries with the old keys. This is not a problem for normalized id, but url and path keys will become incorrect in this case. Then in trigger() we will get a url of entry found via its normalized id (which didn't change) and try to find it again using that url. Which doesn't work because entry->url() returns new url for overridden desktop entry, but m_itemEntries contains key with the old url. This change sidesteps this issue by always operating on an entry found via normalized id, which is simpler and more efficient anyway. FIXED-IN: 6.6.0 (cherry picked from commit 23bd030b2051b4d5d5a74ad23e3487fcde26e443) 8b43c518 KAStatsFavoritesModel: when launching entry, always retrieve entry by its... Co-authored-by: Alexey Rochev <arochevdev@gmail.com> M +1 -12 applets/kicker/kastatsfavoritesmodel.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/c5672b660a5dd45f7f34a328773452a975dcbcfe