I can't complete my Ceiling

[Soundtruck]

I'm working on my base in a new area. I've put up the floor and walls. For some reason, there's a section of 7 pieces in the middle of my ceiling that it won't let me place. I get the message saying "this can't be placed here". I don't understand why. There's nothing in the way.

[Lollipop33]

missing supports for the section missing

[Wanderlust]

Yeah, I suspect it's a support issue. Try placing some beams on some (not all) of the side walls. I had the same problem with a circular base and all I had to do was place a beam on every other side wall and the center ceiling tiles finally took.