Thanks Warboy
Playing a terror mission last night I notice the biodrones melee attack is still bugged (they have no melee accuracy stat assigned I think was the original bug?) I watched one attempt to hit a civvie 4 times a row, then the civvie wandered off like he remembered he forgot his lunch.
Maybe he was just REALLY lucky? I ended up abandoning the mission (aqua plastic armor....) so I didn't get to see more examples.
EDIT; I also found a bug where I had killed all enemies in the second stage of a colony mission and destroyed the synonium device but the mission would not end. When I clicked end turn it didn't even flash enemy turn, I enabled debug and used the force end mission command and it was the same when I would abort or force end the mission, 44 kills vs. 44 kills one live alien. I suspect maybe the live alien had bugged.... however I am a dummy and I over wrote the save file
will work on replicating this if possible, but it takes a serious amount of time to clear the second stage colony, cursed lobstermen!