Tablet mapping offset in canvas window
I'm having issues with my tablet mapping when using Clip Studio Paint. I have a Wacom tablet Intuos 3 using driver WacomTablet_6.3.11-4a (seems to be the latest that will run correctly in Windows 10). I have proportional mapping turned on in the tablet settings. When I try to draw in Clip Studio Paint, my cursor is offset and is only mapped to half the tablet. Turning proportional mapping doesn't seem to have any effect.
It only happens within the canvas window. If I move my pen to any other part of the window (i.e. layers, tools, or materials window) the mapping is correct. I've checked to see if this happens Photoshop, but it's not repeatable in that app. It seems only to happen in Clip Studio Paint. I've tested this in both the 32 and 64 bit versions and it happens each time.
What should I do?