Hi, I am currently having trouble placing a goza mat on my floor. I've included a screenshot (below) of the message I am getting. I tried removing any walls that were below it (even though the walls haven't stopped placement of any other mats) and tried customizing the house and replacing that particular piece of the floor with several other floor types. Has anyone ever had this problem before and is there any way to fix it? Thanks, Wolfthistle.