Derek made a post about a multiplayer game that wasn't finished and asked if anyone would continue to see how long it would take to lose.

I downloaded the save and played it until I lost.

During this I saw a problem where the AI conquered on of my planets in one turn. I renamed the previous autosave file to be sure I could go back and see what happened. I now have a save that clearly shows the AI taking my planet in zero to one turn. The save is available here.  Download it, and put it in your \My Games\GalCiv4\MPSaves\ directory.

Start a multiplayer game, select "Restore Session", choose Conquer Bug, then start the game. You will be at one of my ships that is attacking the colony planet Kona. Look to the northeast a short distance and find the planet Grathis. It is under siege by one of my ships. From there, look to the southeast a little to find the planet Mawhar. Click on Mawhar to see the two Festron ships there.

Go to the next turn. One of Festron ships at Mawhar will attack and destroy my ship that is attacking Grathis. My Ship that is attacking Kona will conquer it. Put your cursor on Kona to check its stats. It has no defense, which may be why the Xeloxi ships can take it so easily.

Go to the next turn. The Festron ship at Grathis will use a long-range missile attack to destroy my ship that just conquered Kona, then the Xeloxi fleet will take the colony planet.

I think it is a bug for the Xeloxi fleet to be able to take a colony planet in less than 3 turns.