My group and I had the problem listed by the OP, we were all able to see ourselves but not each other. By following this advice "Swapping From Legacy Voice and Video" in the first article linked by Keithcurtis: <a href="https://help.roll20.net/hc/en-us/articles/360041544734-Integrated-Voice-and-Video" rel="nofollow">https://help.roll20.net/hc/en-us/articles/360041544734-Integrated-Voice-and-Video</a> Thank you so much @keithcurtis for posting this.