Pen Pressure turning on and off sporadically

Last night I updated to 21.1.2 to try to fix the issue where zooming in to a rotated canvas would zoom away from my cursor. It DID fix that problem. Now I have a new problem.

I'm using a simple, pressure sensitive brush (I tried several, but let's just say adobe hard round pressure size default, so that you know it's not some wonky brush setting).

I draw in a very 'sketchy' way, so tons of short, quick lines. While doing this every 20th (give or take) line will just be solid line rather than pressure sensitive. I can actually open brush settings and see the tapered line flickering between tapered and solid.

I updated my wacom drivers, restarted. Didn't work.
I restarted again just for good measure. Didn't work.
I tried a fix someone else suggested where I put a .txt file in my Roaming file with text commands on it. Didn't work, and that didn't even sound like the same problem to be honest.
I checked my cables and even rearranged them to be in different usb plug ins just on a whim.

I'm on Windows