Ray Kohler

I can confirm, this is working as of 13w09c. I was a little worried when the stable example was a horizontal extender but all of my vertical tests work fine. I did find a new piston deleting bug though, I will report that when I have time.

And still broken as of 13w09b, with the pre-release this week if this bug isn't noticed and fix there is a good chance it will make it into the official 1.5 release.

Still broken as of 13w09a. If this gets overlooked and makes it into the official release of 1.5 I will be really, annoyed.

@Manuel, yes I do think it's a bud related glitch.
@Charles, 1.5 has also changed timing in redstone circuits so some repeaters may need adjusted. My 2 wide secret stairs worked after I added 1 tick extra delay to two repeaters.

Still broken as of 13w7a

Yeah like I figured the bug I was experiencing and this bug were not the same, this one is said to be fixed but the bug that breaks over 50% of my pistons is not.

Mobs going to the nether is not a bug.

I'm not sure if this is the same bug but this set up has more then a 50% failure rate

This doesn't generate ghost pistons but for some reason more then every other piston doesn't fire in the correct order and creates a single double headed piston.

http://img.photobucket.com/albums/v209/Daray_Ryo/Minecraft_Mistakes/2013-01-31_125137.png
http://img.photobucket.com/albums/v209/Daray_Ryo/Minecraft_Mistakes/2013-01-31_125203.png

This is not a duplication of the piston glitch that causes a ghost bug. Vertical piston extenders seem to break every other piston

http://img.photobucket.com/albums/v209/Daray_Ryo/Minecraft_Mistakes/2013-01-31_125137.png

This has a greater then 50% failure rate.

http://img.photobucket.com/albums/v209/Daray_Ryo/Minecraft_Mistakes/2013-01-31_125203.png