Cant use pressure sensitivity without offset?

Hi everyone. I have a VERY odd problem as one fix causes another problem and visa versa. I’ve done some research for my first issue which is: Pen/Brush/Eraser/ANY DRAWING offset on the canvas. But if I move my pen to any of the outside boxes/etc thats not in the drawing window then it clicks perfectly without issue. I found that in the Advanced Tab, under Tablet Support, having “Use QT Wintab Tablet Support” selected causes this offset.

But when I uncheck the box and relaunch I loose ALL pressure sensitivity.

Having my windows ink on or off does not seem to affect this.

All of my drivers are up to date. I’m using a Cintiq 16 at 100% resolution with a Pro Pen 2. Calibrated a few times and that isnt the issue either?

Also using Windows 10 and using Harmony 17 Premium.

Edit: Using the mouse causes it to be accurate. After doing some other checks it was even MORE offset by about 3 inches?! I don’t know whats going on now.

;_; Please help. I just want it to work correctly.