On other side I have iOS and Android clients. Generally mobile apps request camera app to send SDP offer and replies with SDP answer.
On iOS everything works fine but on Android I get incoming stream but with Audio track only. There is no Video track. Meanwhile I see that decoder on Android receives frames and decodes it. But because I was not notified about video track decoder is not linked with renderer.
Previously it worked on Android as well. But since I migrated from gstreamer version 1.16.0 to 1.18.2 android stopped working.