I have a keyboard with numeric keys on the right, so when I click on Meta+. to activate emoji selector it doesn't work and I should click on Meta+shift+. so the point symbol on numeric pad never works to activate to shotcut. The same can be seen when using Meta+1 or Meta+2 to show first or second windows opened in task manager, I should always click on Meta+shift+1 or Meta+shift+2 to activate it. It seems kde considers the numeric keys that are on top (activated with shift) are different than the numerics (activated with Num Lock) that are placed on right numeric pad.
Same thing on my system. Related to bug 413310. Operating System: Arch Linux KDE Plasma Version: 5.18.2 KDE Frameworks Version: 5.67.0 Qt Version: 5.14.1
Possibly duplicate of bug 292739.