SUMMARY
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My laptop doesn't have PageUp and PageDown, meaning I have to rely on the numpad to use shortcuts like Meta+PageUp to maximize a window. Unfortunately, ever since the Plasma 6 update, none of the Meta+key shortcuts seem to work when the numpad is involved. The weirdest part is that trying to reconfigure shows that the settings app can read the keys just as expected.

STEPS TO REPRODUCE
1. Deactivate numlock
2. Press Meta + NP9

OBSERVED RESULT
Nothing happens, but terminal types 1~

EXPECTED RESULT
Window should maximize

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.7.8-arch1-1.1-g14 (64-bit)
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION

Meta+key type this on the terminal:
9 (pg-up) -> 1~
8 (up) -> A
7 (top) -> H
6 (right) -> C
5 () -> 
4 (left) -> D
3 (pg-down) -> 1~
2 (down) -> B
1 (fin) -> F

And ctrl+NP9 types 5~