If you have different computers running CaptureGRID, one on v4.6 and one on v4.7, then its possible for the app to crash when networking is enabled. Specifically, if v4.7 receives a certain network message from v4.6, then it can crash.
This will be fixed for the next update.
But in the meantime, if you see a crash, make sure all computers are upgraded to v4.7 to resolve it!