Unable to host shared world

Hello all, I have a question about a specific shared world and I haven't seen anyone post about a problem like this. I'll start by saying me and my friend can host any other world that is shared other than this specific one that we have played on the most/have the most progression. I play with two other people I'll have their names be J and A for explanatory purposes. This world in particular is owned by J, at first the world was a standard world but he changed it over to a shared world so me and A could keep playing whenever J was not able to host the world and play. J can still host and play on the world, but me and A keep getting smacked with "Hosting game error" whenever we try to host and play on the world, along with whenever one of us tries to host the world, say A tried, he would get the error message and get sent back to the main menu but it would say that he is hosting the world even though he isn't. We've restarted our game, A restarted his console and I restarted my PC but that hasn't helped a bit. We are unable to make a standard copy of it as well to play on it in singleplayer but the other shared worlds make copies no problem. I don't really expect anyone to have a solution to this seeing that after scouring and searching for a fix none have shown up or even talked about, but none the less any suggestions that might seem to fix it would be appreciated. I've already contacted Obsidian about it but in the meantime of waiting for their response I thought posting here would be good as well. Thanks for any suggestions ahead of time.