Audacity needs to be used with the computer’s internal drive.
Network drives have Collision Detection, Routing Management, Error Processing, and Resend Scheduling. All this is happening in the background where you don’t see it. It’s not a perfect connection all the time.
Audacity naturally assumes that any drive it can see can be used for its most delicate, difficult, and important jobs. It’s at a complete loss if a working drive starts acting “funny.”
Koz