Bug 453394

Summary: Present windows sometimes makes windows disappear
Product: [Plasma] kwin Reporter: Emanuele Spirito <emaster987>
Component: effects-present-windowsAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED FIXED    
Severity: major CC: emaster987, nate
Priority: NOR    
Version: 5.24.4   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/kwin/-/commit/376ee357dbc50fec3b6e71c40938171ddb2e726a Version Fixed In: 5.25
Sentry Crash Report:

Description Emanuele Spirito 2022-05-04 18:43:37 UTC 
SUMMARY
It happens sometimes that when presenting windows with the present-windows feature of Kwin they all disappear, both in the grid view and while you come back to the "normal" desktop view (one window per time). See videos in this link:
https://drive.google.com/drive/folders/1ukfOGwLJtaScw_JjvVPqIknazInOyDW-?usp=sharing 

STEPS TO REPRODUCE
1. (sometimes) activate present-windows
2. 
3. 

OBSERVED RESULT
See the screen recordings:
https://drive.google.com/drive/folders/1ukfOGwLJtaScw_JjvVPqIknazInOyDW-?usp=sharing

EXPECTED RESULT
When I use present-window, I expect to see all windows in the grid and when coming back I expect to return to the desktop view, so one window per time. 

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 35
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
Kernel Version: 5.16.18-200.fc35.x86_64 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-1065G7 CPU @ 1.30GHz
Memory: 7.5 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Plus Graphics

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2022-05-05 15:11:49 UTC 
This has been fixed with the rewrite in Plasma 5.25, done by Marco Martin with https://invent.kde.org/plasma/kwin/-/commit/376ee357dbc50fec3b6e71c40938171ddb2e726a!