Still can't place the new stone fireplace :(

[Tri]

Hello! I stil can't place my stone fireplace. It's a regular vanilla server, nothing special about the base; just 2x2x2 squares.
Won't let me place it against any of the walls on either floor.

[TheDarkFelix]

I'm having the same problem right now :,c

[martijn1234]

if u still didnt found out how to fix it try remove the floor above it then place the stone fireplace then replace the floor