Curious, I am running Windows 10 build 10122 with Parallels 10 10.2.1 (29006) When I switch to Coherence, The app goes to full screen mode and I get a grey screen. If I navigate to the top of the screen to get a menu bar I get a Window visible with the current app being "Windows Shell Experience...". I am assuming all this means is Coherence is not yet ready for Parallels 10 and Windows 10. Is this the case? I have looked for discussion about this and found none. Is anyone else having the same behavior? Thank you all
P.S. I can easily get out of the mode by navigating to the Parallels menu, choosing View, and exit Coherence.
I am reviewing Parallels 10 Desktop for Mac for an online website. Having same problem with Coherence. Not going to be a good review. This is a feature I expect to work.