I have a strange problem that seems to occur often, but I'm not quite able to describe steps to reproduce it.
When using the move tool, not dragging anything but just mousing around the document, Photoshop CC gets into a state where the mouse is very unresponsive and mouse cursor is moving around with a lot of jitter
This can be fixed by tabbing to another document, or switching out of the programme and back in again. But it happens really frequently and is super annoying.
Running Mac OS Sierra on MacBookPro11,4 (Retina, 15-inch, Mid 2015) 2.8 GHz