Bug 515691 - With Animations disabled, windows have a 1-frame visual glitch that shows them without outlines and highlights
Summary: With Animations disabled, windows have a 1-frame visual glitch that shows the...
Status: REPORTED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_animations (other bugs)
Version First Reported In: 6.5.5
Platform: CachyOS Linux
: NOR minor
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: accessibility
Depends on:
Blocks:
 
Reported: 2026-02-07 18:32 UTC by Fernando Marcelino Muniz
Modified: 2026-02-07 19:25 UTC (History)
1 user (show)

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


Attachments
Issue in Plasma 6.5.5 [Epilepsy warning] (1.69 MB, video/x-matroska)
2026-02-07 18:32 UTC, Fernando Marcelino Muniz
Details
The first frame. (608.40 KB, image/jpeg)
2026-02-07 18:32 UTC, Fernando Marcelino Muniz
Details
Issue in Plasma 6.5.5 [Epilepsy warning] (2.70 MB, video/x-matroska)
2026-02-07 19:25 UTC, Fernando Marcelino Muniz
Details

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Description Fernando Marcelino Muniz 2026-02-07 18:32:04 UTC
Created attachment 189339 [details]
Issue in Plasma 6.5.5 [Epilepsy warning]

STEPS TO REPRODUCE
Repeatedly minimize and bring back any window.

OBSERVED RESULT
There's no highlights for 1 frame, causing flickering.

EXPECTED RESULT
Load the highlights with the window.

SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.2
Kernel Version: 6.18.9-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-11300H @ 3.10GHz
Memory: 9 GB of RAM (8.1 GB usable)
Graphics Processor 1: Intel® Iris® Xe Graphics
Graphics Processor 2: NVIDIA GeForce GTX 1650
Manufacturer: LENOVO
Product Name: 82MG
System Version: IdeaPad Gaming 3 15IHU6
Comment 1 Fernando Marcelino Muniz 2026-02-07 18:32:50 UTC
Created attachment 189340 [details]
The first frame.
Comment 2 Fernando Marcelino Muniz 2026-02-07 18:49:46 UTC
Firefox's tabs and minimize/maximize/close buttons also appear very dark for 1 frame.
Comment 3 Fernando Marcelino Muniz 2026-02-07 19:25:21 UTC
Created attachment 189342 [details]
Issue in Plasma 6.5.5 [Epilepsy warning]

I thought this was the Unstable Windows effect glitching on maximized windows, but no...

Firefox's tabs and the input field outline appears with the highlights turned on frame 1, then they turn off on frame 2, then they turn back on on frame 3.

It can't be a Firefox issue because I just showed happening on System Settings.