Hi,
Don was a bit wrong about it. Is not a bug. As I explained, FMLE is failing to send any A/V packets for 10 seconds (the default expire timer). When that happens, the connection is recycled. You can "fix" this by increasing the streamsExpireTimer inside config.lua on EMS side, or, make sure FMLE is actually sending data and is not having problems accessing the camera/microphone.
Best regards,
Andrei