This seems to be a random bug:

Most of the time we can't hear the music played by fellowship members.

This seems to be random. Sometimes a member can hear music from all members.

To provoke this:

1. join a fellowship
2. synchronized playing - ie /play 1 sync
3. /playstart
4. you can only hear yourself (with random exceptions)
- also you can only see notes above yourself, so it's not a volume issue.

Anyone else experienced this?

This problem seem to have started about a month ago. The years before that I didn't have any issues.

The bug is highly annoying to me - I mainly play in a group like this.