I also noticed some strange behaviour following the last Windows 10 update.
I noticed that there were two Pimax audio interfaces listed in the Playback Device Properties??. And this was causing all sorts of issues with the audio playback for both PC and Pimax.
I didn't really know what else to do and so I just restarted Windows and blow me down if it seemed to go back to normal?????
My system has not yet updated to Windows 10 Creators and this gives me some concern given that things Pimax are somewhat less than stable right now.
My pimax is working ok right now (latest firmware and Piplay 1.2.57) and I don't want anything to stuff it up.
Soooo, I looked how to stop auto Windows updates until I'm a bit more confident that Creators addition will work ok with world Pimax.
Now Windows 10 will not allow you to turn off auto updates, BUT you can set your internet connection status to Metered which causes Windows to ask for permission before downloading updates (or so I read) so this is what I did.
I guess we'll see if this works when the next updates come along.
Anyone else tried this?