Bug 513747

Summary:	Any extension that is installed and then uninstalled remains in the installed applications of Discover, and this produces errors during the update.
Product:	[Applications] Discover	Reporter:	Nathansoranzo <nathansoranzo1>
Component:	discover	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	aleixpol, kde, kdedev, nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	6.5.4
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=513591
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Video showing the bug

Description Nathansoranzo 2025-12-23 15:03:17 UTC

Any extension that is installed and then uninstalled remains in the installed applications of Discover, and this produces errors during the update.

STEPS TO REPRODUCE
1. Installing any theme
2. uninstalling this theme
3. system update

OBSERVED RESULT
An error occurs when the system tries to update themes that have been previously uninstalled, and this sometimes causes Discover to crash.

EXPECTED RESULT
Error-free update.

Linux/KDE Plasma: Opensuse tumbleweed / Manjaro / Kde neon (Devellopeur/user) /Garuda linux / KaOS
KDE Plasma Version: 6.5.4 /6.4.5
KDE Frameworks Version: plasma 6.5.4 /6.4.5
Qt Version: 6.10 /6.9

Comment 1 TraceyC 2025-12-31 23:44:51 UTC

Thanks for the bug report. In order to correctly try to reproduce the problem, we need a little more detail. Some themes, like Window Decorations, can't be removed from System Settings. Please let us know what kind of theme you installed an uninstalled.

Also, the exact error would be very helpful.

Thanks!

Comment 2 Nathansoranzo 2026-01-01 09:40:49 UTC

(In reply to TraceyC from comment #1)
> Merci pour votre signalement de bug. Afin de reproduire correctement le
> problème, nous avons besoin de quelques précisions. Certains thèmes, comme
> Décorations de fenêtres, ne peuvent pas être supprimés des Paramètres
> système. Veuillez nous indiquer les thèmes que vous avez installés et
> désinstallés. 
> 
> Le code d'erreur exact nous serait également très utile. 
> 
> Merci !

When bugs occur, themes are not visible in the settings but are still visible in Discover. This bug most often happens with global themes, but sometimes also with all types of extensions.

I will try to provide you with an error code as soon as possible.

Comment 3 Bug Janitor Service 2026-01-16 03:47:21 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 4 Nathansoranzo 2026-01-29 18:19:53 UTC

Created attachment 189038 [details]
Video showing the bug

Comment 5 TraceyC 2026-02-11 23:38:57 UTC

Thank you for the additional detail.
I was able to reproduce this today on Plasma built on git-master
I had uninstalled the "Sweet Aurorae" theme. It incorrectly shows up in the Updates list, but not in the Installed list (correct)

From the screen recording:
The terminal shows errors for a pling download of Apple-Ventura.tar.xz "server replied with status code 429"
There are many other 429 error log lines for other themes, like Ant Dark, Amethyst Haze

Note: The 429 errors in Discover are sometimes also caused by server-side issues, and have a separate report open. This bug may be contributing to that problem as well. That's bug 513591