Bug 513860

Summary: No animation when launching some Flatpak applications
Product: [Plasma] plasmashell Reporter: Christian Z. <bugs.kde>
Component: Task Manager and Icons-Only Task Manager widgetsAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: minor CC: bugs.kde, kdedev, qydwhotmail
Priority: NOR    
Version First Reported In: 6.5.4   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Recording of the missing animation

Description Christian Z. 2025-12-26 23:53:59 UTC
Created attachment 188013 [details]
Recording of the missing animation

SUMMARY

No animation is displayed when launching pinned applications if they're a Flatpak version.

STEPS TO REPRODUCE
1. Pin a Flatpak application
2. Launch it

OBSERVED RESULT

No animation

EXPECTED RESULT

A loading animation, like with other application types

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Comment 1 TraceyC 2025-12-30 17:15:27 UTC
Thanks for the bug report, and for the screen recording, that's helpful. I see the loading spinner shows for Firefox (native) but not Waterfox (flatpak) in the Icons-Only task manager

I'm not able to reproduce this in Plasma built from git-master or Plasma 6.5.3 on Solus using Dolphin (native), Tidal (flatpak) and Obsidian Notes (flatpak). I can reproduce the problem with Waterfox (flatpak)

Do you see this bug with any other flatpak applications or only Waterfox?
Comment 2 Christian Z. 2026-01-01 21:54:26 UTC
(In reply to TraceyC from comment #1)
> Thanks for the bug report, and for the screen recording, that's helpful. I
> see the loading spinner shows for Firefox (native) but not Waterfox
> (flatpak) in the Icons-Only task manager
> 
> I'm not able to reproduce this in Plasma built from git-master or Plasma
> 6.5.3 on Solus using Dolphin (native), Tidal (flatpak) and Obsidian Notes
> (flatpak). I can reproduce the problem with Waterfox (flatpak)
> 
> Do you see this bug with any other flatpak applications or only Waterfox?

Most flatpaks apparently display the spinner correctly, including the flatpak version of Firefox and Floorp, but I was able to reproduce this issue with the Flatpak version of LocalSend.
Comment 3 TraceyC 2026-01-07 21:39:13 UTC
Thanks for clarifying. The plasma developers will need to look into this more closely to determine why this affects some flatpaks but not others.