Surface 4 Pro and Painter 2016 Issues

1) Brush calibration works intermittently. - what happens - open the calibraion window and run your pen around in it as per usual and nothing happens. THe graph doesnt change and no dotted line appears in the window.

2) Pinch to Zoom and Touch Rotate seldom works.  (Edit: holding down one finger then waiting, then adding the second finger alleviates the problem)

In programs like Artrage it works perfectly.

if you could fix these things up that would be very kind of you