Kenneth Johan Kristensen
Comments
I think it's worth noticing that whatever I changed my graphics settings to didn't affect the result at all. I have a pretty decent computer that runs Minecraft smoothly with lots of things going on at the same time. However, closing most programs/processes and additionally reducing all graphics settings to the lowest setting did not affect the result, ergo, unless pistons create a humongous amount of rendering computations, compared to all other programs on my computer, that is not likely the issue here.
Edit: I think the bug explained in the youtube video on hitboxes (comments above) seems more likely to be causing the glitch.
-http://www.youtube.com/watch?v=y1kon5Wax8I
Yes, but the map is too large for your 10 mb limit so I uploaded it to mega.co.nz instead:
https://mega.co.nz/#!IE8EEAqK!SZDBpWLKW0m15PtIAkMdCHTdQQFgXreI-OCqf04plwE
Also the coordinates are approx x:500, z: -525, I guess you should be able to recognize my contraption from the screenshot.
Due to some tips from the people at reddit I now think I know why this bug happens. I think that the issue is due to each pistons hitbox updates dependant on the piston I look at, which means that if I looked at a piston facing a particular direction, all pistons seems to update dependant on that pistons direction. I'd like to refer to a video on youtube that reddit people showed me:
Here's the screenshot. I couldn't make the screenshot uploader work so I attached it as a file instead.
Blocks of redstone make pistons power when they should not.