I placed an auto collector, auto petter, and temperature machine underwater two/three irl days ago. I placed the temp machine to see if that would make my animals happy (it did), because a whole season of petting left them still cranky. Logged on today and found them (the machines) all sharing the same square/place in the underwater barn. I re-loaded the save file and was able to pickaxe the temp machine and place it in another spot in the same barn, but not the others. The machines "work" underwater, but now I can't collect the animal products from the auto collector. Hoping that after logging off today and then logging in again tomorrow (irl) the issue will resolve itself. I'll update this post either way.