Bug 510693

Summary:	("Non-existent attached object") error on Kirigami components intermittently breaks many KCM UIs
Product:	[Frameworks and Libraries] frameworks-kirigami	Reporter:	Nik Nikovsky <zejdzztegomaila>
Component:	general	Assignee:	kdelibs bugs <kdelibs-bugs-null>
Status:	CONFIRMED ---
Severity:	major	CC:	akselmo, alexander.lohnau, nate, nicolas.fella, notmart, plasma-bugs-null, zejdzztegomaila
Priority:	HI
Version First Reported In:	6.19.0
Target Milestone:	Not decided
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Nik Nikovsky 2025-10-16 19:49:31 UTC

SUMMARY
You can't make new KWin scripts or adjust existing ones through the system settings
STEPS TO REPRODUCE
1. Open system settings
2. Go to windows
3. Click on KWin scripts (or desktop effects, but that will be in a separate BR)

OBSERVED RESULT
qrc:/kcm/kcm_kwin_scripts/main.qml:26 Type NewStuff.Action unavailable
qrc:/qt/qml/org/kde/newstuff/Action.qml:190 Type NewStuff.Dialog unavailable
qrc:/qt/qml/org/kde/newstuff/Dialog.qml:110 Type NewStuff.DialogContent unavailable
qrc:/qt/qml/org/kde/newstuff/DialogContent.qml:63 Type Kirigami.ContextDrawer unavailable
file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/ContextDrawer.qml:140 Non-existent attached object


EXPECTED RESULT
The ability to access KWin Scripts

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 6.5.80
KDE Frameworks Version: 6.20.0
Qt Version: 6.9.2
Kernel Version: 6.14.0-33-generic (64-bit)
Graphics Platform: Wayland
Processors: 32 × 13th Gen Intel® Core™ i9-13900HX
Memory: 32 GiB of RAM (31.1 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 4080 Laptop GPU
Graphics Processor 2: Intel® Graphics

ADDITIONAL INFORMATION
A similar error is in the "desktop effects menu", but I will make another bug for that in the respective category

Comment 1 Akseli Lahtinen 2025-10-17 09:19:19 UTC

Can't repro on fedora, might be neon bug

Operating System: Fedora Linux 42
KDE Plasma Version: 6.5.80
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.16.11-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 3600 6-Core Processor
Memory: 16 GiB of RAM (15.5 GiB usable)
Graphics Processor: AMD Radeon RX 6600

Comment 2 Nate Graham 2025-10-17 18:34:58 UTC

It's a weird Kirigami or Qt issue that's been dogging us for years. Nobody has been able to figure it out yet. :(

Comment 3 Nate Graham 2025-10-17 18:35:34 UTC

*** Bug 510695 has been marked as a duplicate of this bug. ***

Comment 4 Nik Nikovsky 2025-10-17 18:58:55 UTC

(In reply to Nate Graham from comment #2)
> It's a weird Kirigami or Qt issue that's been dogging us for years. Nobody
> has been able to figure it out yet. :(

I see.
Also, do you think this could be moved to major or is high good enough?
Plus, if it's a known issue, I'm changing the status to confirmed