Hi, welcome to the forum.
First of all, PT10 is not compatible w/Win10, so inconsistencies are to be expected. You might even consider yourself lucky it works at all.
Is this a new setup? Have you had it working before at all?
Also, we always recommend this to new forum members:
Help Us Help You
(Edit: I'm sorry, I just noticed that you joined the DUC over 11 years ago. Not exactly a newcomer then.)