Me and my friend pre-ordered Endless Dungeon and we started playing. When I invited him though, it said that the lobby was either "full" or that it "failed to connect". I don't understand what's wrong because when I started a public lobby to see if they could join then it gave them the same message. But after around a minute of waiting a random person was able to join my lobby. I'm confused and I don't understand the issue. We both play on ps4 and we tried joining eachother back and forth. If there is a fix to this please let me know. Been looking forward to playing this with my friend for months now, but we can't even play.