After a bit of testing and trial and error of multiplayer i believe we have pinned down the possible issues. I have a few friends scattered about the globe and here are my findings.
Seattle, Nevada and Iowa players connect and play, no issues, no crash. Add player from Toronto Canada, Game crashes consistently. Or add player from Austrailia, Insta crash.
I believe the crash issue is directly linked to Sync issues due to ping latency. We have been able to repeat this. Last few hours of my VOD at twitch.tv/drwtrippy on March 20th will show the Consistent crash with Aussie player and the abrupt end of crashes when the player stopped connecting.