I was playing perfectly fine before the update but after I verified the game downloaded correctly, now after the update I rechecked the game downloaded correctly and Steam reports it has yet when playing Online (Only Online it seems) it crashes in a lobby or after the host clicks start.

The last line in the log file (I believe the most relevant line) is:

134450 | Bad magic!
134451 | Bad archive header!

I assume there voodoo failed? :/