I did start a multiplayer game last night, and that all works fine. Dice roll a bit slowly compared to offline play, but that’s probably because the online mode uses dice servers or some sort of anti-cheat mechanism.
Perhaps the dice servers are why, but regularly I have issues where it takes 10-15 seconds to move units because of the absurd lag. Move inf, wait 10 secs, move inf, wait 10 secs, repeat. It seems like quitting the game and restarting helps and this is actually quicker than waiting when you have a lot of moves.
Lag is a major issue IMO, even today (8/2)