SUMMARY

Kickoff completely ignores input from my Wacom tablet, unlike the rest of Plasmashell or KDE.

STEPS TO REPRODUCE

1. Hover the pen until the cursor is above the KDE icon, then touch the pen down to the Wacom tablet to click
2. Do the same thing to move anywhere inside the menu, then click again

OBSERVED RESULT

Nothing happens.

I've tried clicking "Applications", "Places", "Sleep", "Restart", "Shut Down", "Leave...", my username, my profile photo, all of my favourites, all of the categories, the arrows on the categories, and the scroll bars. I have also tried dragging (all 4 directions) to scroll the list of categories.

Other parts of Plasmashell respond properly to the Wacom tablet, such as the desktop switcher, pinned applications, open windows, taskbar icons, the clock. Dolphin and System Settings also respond. Parts of Kickoff respond properly to a touchscreen and touchpad, but they completely ignore my Wacom tablet.

EXPECTED RESULT

Input from my Wacom tablet should elict the same response from Kickoff as input from my touchscreen

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Ubuntu 21.04
KDE Plasma Version: 5.20.90
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

linux-surface on Surface Pro 7
Intuos Pen Small [033B]
The problem occurs even after kquitapp5 and kstart5 plasmashell