After using a tablet for a while and disconnecting it, this weird extra artifact has appeared beside my cursor, but only on my second display. The cursor doesn't distort like mentioned in other questions I've seen here, it just has the extra bar on the left side.
Changing pointer theme to Windows Black or turning on pointer trails gets rid of it, but I don't really want to use a workaround.
restarting (because it fixes a lot more things than it should, eh?) Didn't work.
reconnecting the tablet and undoing all my settings changes (I'd set the pen input area to only my first display, and turned off 'press and hold' because it was getting in the way of drawing). Didn't work.
shifting windows between the two displays. The cursor is specific to only the second display.
checking for driver updates, my mouse and tablet drivers are up to date.
disconnecting/reconnecting the second display. Didn't work.
The funny thing is I've used that tablet (an old Wacom CTE-640) on this machine before and I've never encountered this problem.
Does anyone have any idea what this is?