In Minecraft 1.4.7 redstone worked well, but in minecraft 1.5 (called "redstone update"...) pistons are bugging.... There are three bugs that destroy bigger redstone creations. Look on the video >> https://www.youtube.com/watch?v=hx_KK_iV9iY Mojang! Please repair these bugs!
P.S. I tested it on minecraft snapshot 13w22a.
Environment
Java 7 u. 21
Windows 7 64-bit
Intel core i5 3210M
Nvidia Geforce GT 630M
6 GB RAM
Linked issues
duplicates 2
MC-108
Droppers, Dispensers and Pistons activate when blocks are providing power diagonally or two blocks above
Resolved
MC-11193
The order in which powerable blocks (e.g. redstone dust blocks) along a wire are powered or de-powered is not clearly defined and causes a non-deterministic behavior for redstone contraptions
Open
Please submit only one bug per ticket.