Leave Party Doesn't Work/Force to restart game every dungeon

[Narnun]

As the title said, I can join any dungeon and run any dungeon, been up to +2 so far.
However at the end of each dungeon, after I load back into town, I am in the party and it's impossible for me to leave the party and therefore queue another dungeon even though everyone else left the party.

Therefore, the only fix I've found is to shut down the game and restart it, EVERY SINGLE DUNGEON!.

As such the game is unplayable for any degree of time to be enjoyable. Please devs, give priority to this bug