I’m glad that you found the culprit and I understand your frustration. But don’t worry, once you set everything up, it will be rock solid.
This has nothing to do with Gig Performer, but with the audio manufacturer’s drivers.
I’ve seen here in the community videos of RME devices, where people tested pulling out the USB cable and attaching it again - the RME was operational within a second or two (if not less) and was behaving like nothing happened.
Something is mentioned in this blog, this tip, to be specific.
This works better on Mac, to be honest.