[MC-117170] symmetrical system doesn't work symmetrically

So I played around with redstone and noticed something strange. I made a simple symmetrical system to show it off.

On the screenshot, I provided all the information needed to reproduce my bug.

There are six levers. The system is totally symmetrical. All four levers on the right cause pistons to extend and retract, but those two levers on the left work strangely.

If I use them very fast they all work as intended. If I press them with a delay of a second they do not cause pistons to retract, even tho those on the right do that without any problems.

Related issues

duplicates

MC-108 Droppers, Dispensers and Pistons activate when blocks are providing power diagonally or two blocks above

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Comments

migrated 2017-05-08T13:15:40Z

[media]

migrated 2017-05-08T13:17:47Z

Duplicates MC-11193 AND MC-108, please search before creation tickets.

migrated 2017-05-08T13:23:33Z

I played around with it a bit more, that looks like it's not working the same for the same chunks. moving something 16 blocks in any direction, rotating, moving something up and down all gives inconsistent results.

migrated 2017-05-08T13:24:22Z

MC-11193

migrated 2017-05-08T13:25:19Z

It is not duplicate of MC-108, I know how BUD works, that's actually working in much stranger way

migrated 2017-05-08T13:27:23Z

It's a combination of MC-11193 and MC-108. This never(or always) happens if either of them didn't exist.

I'm not going to explain this further, this is a combination of 2 bugs, as such it's a duplicate of both of said bugs.