IIRC a send stream sends RTCP BYE when being destroyed. So any code we have that may recreate a send stream to apply some settings that can't be applied on the fly will cause RTCP BYE and a mute event on the receive side.
Bug 1814485 Comment 4 Edit History
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IIRC a (libwebrtc) send stream sends RTCP BYE when being destroyed. So any code we have that may recreate a send stream to apply some settings that can't be applied on the fly will cause RTCP BYE and a mute event on the receive side.