Bug Description :
Not sure if that bug, but party system should be fixed in my opinion. When you for example grinding some place and add people to party, you might get buff called “Team Level 2”, it gives +1% EXP gain. After all people left my party and im only one left, party should be closed right? But i see that im still in this party alone and still have this buff 
This situation kind of strange, im not against getting that +1% exp but probably should be fixed anyways… One person cant be in party 
This situation gets annoying when you have to leave party in which you the only one person.
It’s not a bug, this buff is about your team, not about your party, in lodge click on top right button ‘team info’, you’ll understan then
but then again what about party where only one person?
‘Team level 2’ has nothing to do with party.
Team level is a mechanic based on your Lodge (your characters) - basically if you have a bunch of high level characters and pets then your ‘team level’ increases. I think it’s capped at +10% exp.
Maybe they can change it to ‘Lodge/family level’ in future to avoid confusion, since ‘team level’ might suggest leveling up a party to gain bonuses.