Hey, @Captain_Chaos.
As Bob said, auto miners can sometimes vanish for some reason. We donāt have logs over small placable, so we canāt tell why unfortunately.
But as a one-time exception Iāll take your word for it. I put them in your inventory now. In the future we would technically need a video of the auto miners disappearing to be able to help. That video would be very hard to get, yes, but itās unfortunately the ways things are in Empyrion sometimes 