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What does "turned off midway" mean? Did they have both microphone and camera muted some time during the session? And unmute did not work? Or did you mean that the user rejoined and their microphone/camera did not work on initial connection? And microphone worked after switching source? This might require client side logs of your app for clues. I am seeing the user joined three times (three participant sids) for the same room. So, they have joined thrice. Guessing the problematic one is the middle session here - https://cloud.livekit.io/projects/p_2nxn09d2ot6/sessions/RM_AQht54aZMDrt/participants/PA_LBTg3sanetHE For that short session, server side logs do not have an

AddTrack

for camera track. Could be a client side device acquire error. Do you have client side logs?

This error is reported in the browser side using the js sdk deployed in prod. as i see there is not much error logs being generated in client.

any logs that you have would help! which version of the client-sdk are you using? if this is reproducible, listen to

RoomEvent.MediaDevicesError

to surface any device issues that happen within the sdk