(I had to do a two monitor image since alt hides the cursor, just right click and open the image in a new tab)
You can see when I go to place down the venture mobile refinery, it just doesn't allow me to do it. only the placement dots for walls are showing up, nothing for floors though. I have already reloaded the save, exited out of the game and relaunching. Nothing has fixed it.
I was unable to replicate this with other techs. I built another GeoCorp platform and It would allow me to place it on GeoCorp blocks (space wise) like in this picture, but for some reason I couldn't place on my tech.