Cursor hugs the right edge of screen while using pen tablet

I use Windows 10 with Yiynova MSP19U pen tablet as an extended display.

I have tried fussing with screen resolutions, swapping main displays, uninstalling and reinstalling new drivers, old drivers, and the Animate program, unplugging and plugging in the hardware, however the problem persists.

The cursor works just fine in Photoshop, and I can draw in Animate if I click off onto another window and then draw directly on to the stage; but as soon as the Animate program becomes the active window the cursor immediately hugs the right side of my screen and i can't draw directly on the stage unless I use the mouse or click off the window and repeat the process.

If I move the monitor to the right side of my main display in the settings - the cursor hugs the left side.

The problem also happens with OpenToonz.

This problem has happened within the last 48 hours as my set-up was fine the past year until now.

I'm not sure what the problem is or how to fix it.