when trying to load into a co-op game with a friend we could never get it to load with out kicking uus out.
So I decided hey select classic graphics and music instead of remastered before you start the game which is I think under the visuals and music as you are selecting the options for time score. And boom we can load in and then switch to remastered while in game.
If this has been stated already I apologize but this has been frustrating me to its bitter end. If this works for you awesome glad I can help.