What I expected to happen was...:
When I build the block update detector (in picture) piston will stay in that and block don't disappear
What actually happened was...:
piston is disappear and come back.disappear and come back...
Steps to Reproduce:
1. build that block update detector
2. start it and watch ,you will see sometime piston disappear
or watch this
http://www.youtube.com/watch?v=1du3yywmflg
Linked issues
duplicates 1
Attachments
Comments 3
I say " piston disappear " not say "it's block update detector"
I know it's block update detector but sometime piston and slime block disappear .
so I report this because moving piston is disappear not it's block update detector.
This appears to have been improved in later snapshots. Marking as a duplicate of MC-62440 because it better describes the current behavior.
Probably intended as replacing the piston head block with an slime block is considered as a block update by Minecraft.