I'm still getting it on 3rd or 4th try but I can only play solo. If anyone else loads in with me they get a connection error. I'm doing with my own Xbox so it doesn't matter but still.
I've had it working all weekend with my own 2 Xbox. Now everytime you get the stack and the party lead leaves, the menu refreshes and you can't edit anything. I've had the same thing happen over a dozen times now.
I'm using two Xbox and can't seem to get the timing down. I've had the most luck with clicking Leave then A on the other controller almost immediately but the UI hasn't wanted to stick for a couple hours now.