[okular] [Bug 480377] New: Weird transparent visual glitch

[Tammes Burghard]

https://bugs.kde.org/show_bug.cgi?id=480377

            Bug ID: 480377
           Summary: Weird transparent visual glitch
    Classification: Applications
           Product: okular
           Version: 24.01.90
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: kde at kuchenmampfer.de
  Target Milestone: ---

SUMMARY
***
I can not reproduce this consistently, but found a way to make it happen with
about 50% consistency:
Being on a tablet and using touch is essential here I think.
***


STEPS TO REPRODUCE
1. Open Okular and maximize it
2. Open a PDF file
3. go to the next workspace via three-finger-touch-swipe
4. Rotate the tablet to be vertical and in touch mode
5. three-finger-swipe back to the workspace with Okular in it

OBSERVED RESULT
Not always, but often times, the document area becomes transparent and a bunch
of glitches appear, see attached video

EXPECTED RESULT
No visual glitches, the document gets shown in a vertical Okular window

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.92.0
KDE Frameworks Version: 5.248.0
Qt Version: 6.7.0
Kernel Version: 6.7.1-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Pentium® CPU 4425Y @ 1.70GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 615
Manufacturer: Microsoft Corporation
Product Name: Surface Go 2
System Version: 1

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