Coming back to SupCom after a while, I thought I'd play the Singleplayer again.
But,...
The Red Flag mission from Forged Alliance (mission 3 where you have to save the princess) doesn't work properly. The first task is to eliminate 14 marked structures of the Seraphim to the north, but there are only 12 marked (in red). So when I destroy all buildings, I've only destroyed 12/14 and there's nothing else to do. And the mission just doesn't continue.

Has there been an update that changed something? Or is there a solution for this problem?