Bug 423871

SUMMARY
After rotating the screen, for example 90° to the right, the mouse cursor gets stuck. Upon moving the mouse / using the touchpad a new mouse cursor appears, but the old one stays.

STEPS TO REPRODUCE
1. Rotate the screen

OBSERVED RESULT
THere's a second mouse cursor that stays where it is and never goes away.

EXPECTED RESULT
There should always only be one cursor.

SOFTWARE/OS VERSIONS
Windows: -
macOS: -
Linux/KDE Plasma: Manjaro KDE (compiled Plasma+Kwin with kdesrc-build)
KDE Plasma Version: 5.19.80
KDE Frameworks Version: 5.72.0
Qt Version: 5.15.0

ADDITIONAL INFORMATION
Rotating the screen back doesn't resolve the problem, the cursor still stays. Only a reboot solves it. If the screen is rotated and I reboot though it appears to only rotate after logging in, so there is currently no way to get a rotated screen without a stuck cursor image.