Sometimes the stacker tower shows "Extension blocked" but i can place it manually. sometimes it unstucks itself but sometimes it does not. 
I happened to notice today, there's a little bit of inconsistency in the "found on map" feature of the Search system:  Specifically, when searching for …
This is a particularly annoying one. If I accidentaly pull the area of one tower into the other, I get no notification like I get with mining area outside of tower range. I just notice it when my precious dirt is dumped into the ocean.\ \ We should get an …