Bug 509969 - Icons-only task manager displays icons from applications that are on other desktops, disappear when clicked on
Summary: Icons-only task manager displays icons from applications that are on other de...
Status: RESOLVED DOWNSTREAM
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager widgets (other bugs)
Version First Reported In: 6.3.4
Platform: Kubuntu Linux
: NOR normal
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-26 16:39 UTC by Sven Olaf Oostenbrink
Modified: 2025-09-26 17:33 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Sven Olaf Oostenbrink 2025-09-26 16:39:06 UTC
SUMMARY
Panel shows icons from applications that are on different desktop, disappears when clicking on it

STEPS TO REPRODUCE
1. Ensure KDE will auto start various applications on different desktops (setup with special window rules)
2. Ensure that panel only shows icons from applications on currently visible desktop
3. Boot up computer to desktop 

OBSERVED RESULT
4. Once all applications are started across all desktops, you will notice that the panel shows icons from applications that are on different desktop. Say that we're on desktop 1, I will see an icon from an application that is on desktop 5. Checking the various desktops, you should find various icons on desktops that are for applications that are visible on different desktops
5. When clicking on these icons, the desktop is switched to where the application is (so I'll switch from desktop 1 to 5)
6. When switching back to desktop 1, the icon is now gone there.


EXPECTED RESULT
4. Once all applications are started across all desktops, I should on each desktop only see the icons for the applications that are visible on that desktop

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Operating System: Kubuntu 25.04
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.3
Kernel Version: 6.14.0-29-generic (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION
Comment 1 Bug Janitor Service 2025-09-26 17:33:42 UTC
Thank you for the bug report!

However Plasma 6.3.4 no longer receives updates or maintenance from KDE; active versions are 6.4 or newer. Please upgrade to an active version as soon as your distribution makes it available to you. Plasma is a fast-moving project, and bugs in one version are often fixed in the next one.

If you need help with Plasma 6.3.4, please contact your distribution, who bears the responsibility of providing help for older releases that are no longer receiving updates from KDE.

If you can reproduce the issue after upgrading to an active version, feel free to re-open this bug report.