Idle Online Universe RPG

When I return from a challenge or do a browser refresh I get an error that my current party is full and I cannot rejoin it.  I am agin on my own and have to manually reconnect to my party.

ive got the same issue, party has 3 members in it, and any time i go ZZZ and try to come back it tells me the party is full. i dont think i was getting this issue when it was just 2 members