Can only hear one other musician in group

[JAMGK]

use the default setting - "lowest latency"

it will attempt peer to peer, but should that fail, it will fall back to ARS

I believe the use of their ARS is currently disabled. While your connection may still get routed through a nearby ARS server, the chances are that this won't happen unless you're really close to one of them (only about 100 globally last I heard).

In almost every session I've had in the past week, one or more of the particpants wind up getting connected via ARS rather than the preferred P2P connection route.  There is no control over that, have to reload or leave/rejoin the session to try to get the P2P to stick.  The audio quality and latency from the ARS connection is un-tenable.  I've reached out to Dave Wilson on FB messenger and in the FB JK forum with no response.  Any thoughts?