Hello there,
There is an issue with this plugin and an App called Sketchbook Pro. When I use this app with eith of these tools both the Spud tablet and Spud Arm freeze on the screen while a stylus is in use. It's the only app currently that just just freezes both until I raise my hand off the screen.
I'm using a Cintiq Pro 32. Works perfectly with every software but this Sketchbook Pro Software.
I sure hope you can fix this.