[jpowell]

I experienced the same thing, but with a twist: I had one group of ships over an enemy planet, blockading it. I brought in a troop transport to invade. When the transport arrived in the square, I was given the opportunity to start combat, which I did. I ended up with two turns: one turn for my combat ships that had been blockading, another turn for just the troop transport. Very confusing until I read these Posts.