Help: X1 Yoga pen having weird issue

[Paintball Taco]

I’m having an issue with my pen where it stops giving input to the laptop. The pen battery charges fine and the touch screen works with my fingers.

I can get the pen to work if I rollback or update the drivers (if I had previously rolled them back) but the pen stops working again after I put it back into the internal charging port.

I haven’t been able to find a problem similar to mine yet. Does anyone have any ideas? All help would be greatly appreciated as I use my thinkpad for engineering school and really need the pen to take notes/use programs.
Thanks!