Originally Posted by nox
I am not sure when or how this happened - there were three factions, and then after destroying one of them, the third faction appears to have become one of the old existing factions.
I can upload the log or save if you wish. I think the result was legit, just confusing. This might have been a rebellion on the last planet of the shadows, which turned into legion who had already been removed from game.
Legion and Talon are monster races. Any time a colony is destroyed by monsters, there's a chance for one of the monster races to take over. Having two Legion icons on the relation screen looks pretty odd, though.