I am trying to place one of the 4x4 paintings in a certain spot

I am trying to place one of the 4x4 paintings in a certain spot, but the 4x4 paintings will not place in that spot. I can place them anywhere else but that one location. Every smaller painting i know of will work, but not the 4x4 ones. ALSO, I am placing the painting there because it was there in 1.7.10, but the painting somehow disappeared when I updated to 1.8. It has been bothering me because the painting belongs in the middle of a huge adventure map I've been making. The painting is a major focal point in the map. Please help.