Nov 11 Update broke party system

The latest patch broke the ability to play with friends in the same server. The host will find a game and then party members will join without the host, who is sent to a black screen every single time. If the host then tries to join that game off a friend, they receive "unknown error". Individually, players can join a game and join off each other without issue.

My friends and I have tested this thoroughly. Please test and release a hot fix. Troubleshooting will be a waste of our time, so please no recommendations. The game works fine for every person individually; just the party system is now broken.