But I'm using .91
It doesn't matter though. I'm giving up on it, I'll just use screen mode.

It's definitely there, and I know it's not a bug. I have the same issue in GIMP 2. Neither manual for either one has anything on this.
I think that the mode is made for more something like a Cintiq, but I don't know why there is no option to just show a pointer.

Window maps the tablet's surface to the focused window. Screen treats it like a mouse cursor, spanning the whole screen.

The device itself is a Wacom Pen & Touch, and it works perfectly fine; pressure sensitivity and pen position are both good. I've checked both of those menus and while I can switch it from Screen to Window, it has nothing to fix the issue. Neither does the Wacom software. The problem only present...

Specifically when the device is in window mode as opposed to screen mode.