There appears to be an interraction btw polling the mouse sub-controllers where polling the button controller wipes the ball controller 
Eep
Is that all platforms?
I’m guessing in the case of the mouse the subcontrollers just defer to the parent as it was a bit of a nasty thing splitting them like that when the hardware doesn’t
Endolf
It was Linux that I came across it on.
JInput2 was the solution 8)
Hi
Just my dodgy code then 
Endolf