No aliens left but still "Hidden movement" I'm pretty sure this is some kind of bug, either that or i'm completely blind. Yesterday i shot down a "Landing ship" (i think that's what it was called) sent my QRF and cleared the area rather quickly, but somehow there was still hidden movement at the end of the turn. Meaning that either somewhere there was an alien still alive or there was a bug. I spent nearly 45 minutes scanning the whole map tile after tile, building after building and i couldn't find that fucker. Eventually i aborted the mission (which took me another 20 minutes  because the damn civillians that hid in my Charlie were blocking the hunter from entering. 

Is this a common bug? Or did i really just miss one out?