It seems that if you mess around with buttons and Item frames they get really buggy. Only works if you put button on the actual block after item frame has been placed. I hope this makes sense.
MC-18835
Buttons on Item Frames
Resolved
Duplicate
0
Jack Sullivan
(Unassigned)
Unconfirmed
Minecraft 1.5.2
Retrieved
I seem to of found this issue is already reported. Please ignore this post.