Heard back from them!
As you can imagine, many development teams have also been affected by the health crisis but they are looking into the issue.
I’ll continue to update this thread as I hear from them regarding a fix.
Quick question, did you try making sure that your 7777, 14001 and 15000 ports in the local network on both PC’s you’re trying to play on are open? (I have let them know that this is not an ideal solution but I’m curious as to if this would allow multiplayer to function correctly)