All chat messages are displayed twice and attributed to the host of the group call
When I made a call to three friends (all using the most recent stable versions of Jami from the project page) all chat messages from others where displayed twice and attributed to me/the host. Seemingly only I could see my own messages as coming from me. One friend was connected using Jami on Ubuntu 18.04, an other one using Debian 10, the third one using Windows 10 and I was using Debian 10 too.