Bug/Issue Multiplayer Session Disconnects After Talking To Marlon

This happened to my friend who was the host of our multiplayer session. It started at the cutscene where you meet Marlon and he gives you the sword before you are able to go into the mine. This cutscene worked fine for me but when the host entered the cutscene the message "Server was disconnected" popped up. His game didn't crash but we were disconnected. He tried it again and the same thing happened. He was able to skip the cutscene to avoid being disconnected. He tried going to talk to Marlon later and we disconnected again. Every time he talks to Marlon this same problem happens. We are running on build 2854542 and Windows 10