The new variable redstone strength is having some strange effects on certain blocks. When an object such as a weighted pressure plate or daylight sensor is placed, hooked up to a line connected to a row of pistons, and slowly increased in power, The redstone seems to cut out for a split second, causing the next piston to get stuck in a position where it is both extended and retracted at the same time. Which pistons get stuck is 100% reproducible every time the machine is reset, but changes when the machine is moved or rotated.
Please note that this is not a duplicate of MC-127, as far as I can tell, as the pistons getting stuck seems to be a by-product of a bug with the redstone, not the actual bug I am reporting.
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i hate this bug

Hi! I reproduced this bug and I found that it is not directly related to signal strength.
The problem is caused by some pistons retracting and expanding again, while an adjacent piston is extending, resulting in a situation similar to the one I have described for MC-6717 (two piston arms staggered).

Added 3 screenshot of a mechanism proving this behavior.
The two pistons receive inverted and synchronized power, making their arms to stagger.
The first is the system once built, the second is then system swithed on and the last is the system switched off again.
Notice the bug on the right piston.

Note: still present in 13w02b.

Yeah! Go Jeb! Assuming it is in fact fixed and not just no longer reproducing in his end...

This is happening again in 13w07a & 13w09a

No it's not.

Please give a screenshot or video of it happening, showing with F3 what snapshot you're in.