[Dweeb]

Here's a quote from the manual:
"Simultaneous Games work a little different than Turn-Based games. Every player takes their turn at the same time as the other players (if on different machines). Players can only give orders to their ships, they will not move. Movement for all players is executed at the same time after all of the players have taken their turns. Combat which occurs is resolved automatically by the computer and no Tactical Combat is allowed."

It's not a bug, it's the only logical way it can work.