[MC-97573] Hoppers dont update when unpowered

Hoppers stop processing items at a certain point when unpowered shortly, causing the items to build up.
Notice that this does not happen initially, but only after you relog or reload the chunks. (Same as MC-74729 which was fixed in 1.8)
This bug occurs up till an off-signal of 3 ticks. Which incidentally is (almost) equal to the speed hoppers process items.

Update: Whilst trying to work around this bug, I discovered more nonsense. I could create a seperate Issue altogether, but I believe the two are related and it might help fixing the Bug.
I tried to let the hoppers process 2 items at a time instead of one, but the result was just as irregular.
This time the items will arrange in a specific, but non linear pattern. (see "update" screenshot). This behaviour occurs with several different pulse lengths

Could also be related to MC-11193

Linked issues

is duplicated by 1

MC-94128 Hopper does not update correctly Resolved

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Comments 3

SunCat 2016-02-19T20:46:33Z

Confirmed

Joe Carter 2016-03-18T22:31:21Z

Confirmed for 1.9 multiplayer and single player, this needs fixing as item sorters break due to it

wobst.michael 2016-10-23T16:25:23Z

Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w42a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time. If you are the owner/reporter of this ticket, you can modify the affected version(s) yourself.