Title says it all... included YT videos below since i have no idea what's acualy happening and because of that cant really explain anything so video is the way to go... All i can see is just copper drones mining iron for some reason they can't carry it and just dropping in on ground.
YT 1: https://youtu.be/JkKE4bX-Ltw (Just the minig it self)
YT 2: https://youtu.be/XZ0JVkKdlyM (Messing with it aftewards + re-done how it happend the 1st time)
