Do you have a value set under ‘Terminate Sessions Paused for Longer Than…’ ? (Under Settings / Network (with show advanced enabled))
I had 30 set there, removed it (which changed to 0).
Prior to changing that I could play the same file repeatedly and it would pause within 30 seconds - with it set to 0 I have played the same file at least 20 times and it hasn’t paused.
Might be a coincidence, but could be worth a try…