This sounds like a crash in JPLAY.
Our experience with that driver’s stability has not been great. We have spent some time investigating issues in the past, and generally those investigations end at unexplained behavior–the driver crashes, or it stops requesting audio samples from us mysteriously.
We’ve asked them a few times for an explanation of what (if anything) we are doing wrong that might be contributing to these problems–what we need is a technical explanation that speaks in the terms of the interface between Roon + the JPLAY driver.
Unfortunately, we have not gotten a good answer back from them that lets us move forward. Since the crashes/hangs are happening inside JPLAY as far as we can tell, the investigation must start inside of JPLAY and work its way “up” into Roon.