So, I just played through the "Squealer" mission.

Went through two DoubleJack fleets, kicked their butts, came to the third one, where Trell informs me we're encountering a big ship. Takes me awhile, but I kill him. Sure enough, there's a lifepod with the captain in it! I tractor him in AND...!

Mission failed.

No further explanation.

I tractored the guy in, just like I was told I might, and that counts as a failure.

A quick search of teh interwebs leads me to see that this was a common bug on Steam about three years ago.

Anyone else know about this?