no rtcp-mux attribute in answer response for multiple branches

[korayvt]

Hi,

I attached two different log files.

One is for single branch call (rctp-mux.log) and the other is for multiple branch call (no-rtcp-mux.log).
Although the command for the answer is similar in those two scenarios, I could not get rtcp-mux attribute in answer response sdp in multiple branch call.

Am I missing something?

no-rtcp-mux.log
rtcp-mux.log

[rfuchs]

Can confirm that this is not working as expected