Hydrogen Generator marked Missing Foundation

Hydrogen Generator marked Missing Foundation when it was sitting on three solid tiles, I did later find than when adding a fourth tile on the right (highlighted tile near Hassan in the second screenshot) the problem fixed itself. Whether intended or not, here it is.

PS: Just want to say this game is amazing! Each and everyone of your projects is one of a kind and the most re-playable experiences in my rather bloated library. Keep up the good work, and Thank you for these wonderfully crafted experiences!