Good luck on resolving the errors!
Here is my Co-op log for trying to load into my previously 35.16 game.
Launching into 64-bit. Host. Start. Let everything load. Game becomes unresponsive when I "Click to Start"
I can't seem to get this to work :\ Everything looks like it should be working fine, but when I start a game on this map (single player), I just spawn in a massive empty field. I can't find anything else.