This is what happened. Me and another civ ship were racing to an anomaly, I was 2 tiles behind. I clicked on the anomaly, with 3 tiles to get to it and instead of using up the 3 remaining tiles the best way possible (by actually getting to the anomaly first) it moved my ship behind the other one instead of simply flying by, thus loosing advantage and having to spend one additional move to get around...
I have the pic posted at Apolyton GalCiv2 forums...
Please fix this...