Yea, I'm having this problem too and it's infuriating.
Pre Plus, 2.1, uberkernel, 500/1000 screenstate
Set it back to Palm Default in govnah, reboot, and it works again.
Then I set it to Fixed Speed 800 and it seems fine for now. Although I acknowledge I need to test more.
Maybe this is an issue with the screenstate mode of uberkernel? Is webos internals aware of this potential issue?