SUMMARY

In Looks and Feel -> Colors and Theme -> Global Theme, when I click on a theme, a small dialogue pops up asking whether to apply the theme. However, I can't use my graphics tablet stylus to click anything in that dialogue -- the Apply/Cancel/Choose button, the checkboxes, etc.

I have tested this with Wacom/Huion/XP-Pen tablets and displays, both linuxwacom and opentabletdriver, all failed to work. So it's hardware/driver unrelated.

This issue existed since Plasma 6 came out, as far as I can remember.

Similar problem happens to the start button (kickoff). I can't click it with a stylus after restarting the system unless I repeatedly click it for many times. And once triggered, I can click it in the rest of the session. I wonder if these are related.



STEPS TO REPRODUCE
1. Go to System Settings -> Looks and Feel -> Colors and Theme -> Global Theme
2. Click on a theme
3. Try to click elements in the popup dialogue

OBSERVED RESULT
Can't click anything.

EXPECTED RESULT
Can click like a mouse.

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.17.1-0-MANJARO (64-bit)
Graphics Platform: X11