When retracting a piston, there is a ghost block behind it for about 0.1 seconds.
I can't upload screenshots, but i have a video about it.
http://www.youtube.com/watch?v=SZgndBdU4lw&feature=youtu.be
MC-15303
Ghost block hind piston when retracting
Resolved
Duplicate
0
Luke Andrew Harbottle
(Unassigned)
Unconfirmed
Minecraft 1.5.2
Retrieved
Duplicate of MC-1677, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being closed as duplicate.