Neutral Extractor

Hey everyone, I think I just found a bug. I had this large TEC fleet in with two enemy neutral extractors. While all of them were waiting in there, I just finished the designate target research. Then, all my cielos suddenly used the designate target ability on the neutral (invulnerable) extractor. As soon as they did that, my caps rushed over and started using their abilities. The one that I remember is my marzas using radiation bomb, but I think there were others, too. Has anyone else had this problem? Thanks.