Affects Version/s: Snapshot 13w01a, Snapshot 13w01b, Snapshot 13w02a, Snapshot 13w03a, Snapshot 13w04a, Snapshot 13w05a, Snapshot 13w05b, Snapshot 13w06a, Snapshot 13w07a
Fix Version/s: Minecraft 1.5
Environment:Java 1.7 Win7
Build the attached setup, place a redstone block between the pistons and wait a few seconds. Alternatively kill yourself (/kill), fly away and come back etc. (same steps as to reproduce
Actual outcome: Redstone block turns invisible.
Expected outcome: Redstone block stays visible.
Bug also exists for other blocks if you power them
Probably the same underlying issue as
MC-177, but this particular issue can not be reproduced anymore because of changed piston behavior.