I just created a new VM using Ubuntu 18.04 and installed Jitsi following the quick install guide provided. I have not made any modifications to the project or the server files after install. I was able to successfully open 3 tabs for the same room name on my computer but when i joined a 4th (using android Samsung Galaxy S7 phone) the person on the Android’s video was no longer able to be seen.
For testing: Android phone worked with P2P ( 2 people in room, but not when 3 connect).
Check the Screenshot below.
Console: No errors (ICE connected and such).
Jicofo Log only had: WARNING:  org.jitsi.jicofo.JitsiMeetConferenceImpl.log() No jingle session yet for room5@conference.
JVB had this:
2020-06-17 19:01:14.900 SEVERE:  [confId=ea8570c6adb1d00d epId=4eb4ecb8 gid=ff4077 stats_id=Nedra-nZH conf_name=room5] DataChannelStack.onIncomingDataChannelPacket#81: Could not find data channel for sid 1
2020-06-17 19:01:40.897 WARNING:  [confId=ea8570c6adb1d00d epId=4eb4ecb8 gid=ff4077 stats_id=Nedra-nZH conf_name=room5] AbstractEEndpointMessageTransport.onClientEndpointMessage#220: Unable to find endpoint a95471d3 to send EndpointMessage
Prosody: no significant errors logged.
Error binding encrypted port for https: No key present in SSL/TLS configuration for https port 5281