@NiLuJe,
I went ahead and tried it on the Forma where everything seems to work OK.
So it's the ClaraHD which is the problem.

I even went through an uninstall cycle -
although I'm not sure what that does exactly - then reinstalled. The reboot problem remains.
The Clara and Forma are the only devices Miniclock is installed on. It's too late tonight, but I might try it on my KA1 and H2O tomorrow.