auto workbench has all ingredients in but doesnt start building until player opens up the auto workbench GUI.happening to several autoworkbenches. they seemed to work fine until this last part i built. doesnt make much sense.

I'm getting reports that this issue also affects 1.7.10. Could you backport this, @AlexIIL ?

I'm looking into it, but it works a little differently in 7.1.x so don't expect anything soon :(

running a server mc1.8.9 ,bc 1.2.5 beta, doing ic2 recipes

i've noticed it happens when it runs out of ingredients to continue crafting, then when materials arrive and has enough to build it doenst start building again.

for 7.2.6: I encountered this right now aswell. Put a stack of diamonds into it (using a pipe system) for transforming it to blocks. Now i wanted to see whether all stuff arrived at its chest but when i opened the chest it still was empty... So i looked for the problem and once i opened the workbench i saw a nice bunch of diamonds that started transforming right in that moment...

It really breaks any kind of automated tree farm and since there is no space for lasers next to them there is not even a workaround :/

Sorry, should have switched the label earlier

Yep, also just discovered this bug myself on my server making scrap-boxes in it D:

@AlexIIL
I don't want to be impatient or impolite but since there are no news regarding any type of hotfix a friend of mine dug into it and found https://github.com/BuildCraft/BuildCraft/blob/7.2.x/common/buildcraft/factory/TileAutoWorkbench.java#L328 to be the problem since the flag is never set to false again, neither manually nor by scheduledCacheRebuild=true (when insertion happens automated). These flags are only triggered when the craftMatrix changed but not if the inputInventory changed.
Thus when items are inserted by a pipe it won't start crafting on its own (since it still thinks it's jammed).
As it seems a possible fix would be to add a scheduledCacheRebuild=true at the end of all setSlotContent methods.

Looking forward to a 7.2.7 Hotfix for making the worlds run automated again :)

@rapus95 I don't have a problem with asking for fixes, especially if you find the bug for me :)

@AlexIIL do you plan to release a new version/hotfix with this being solved? (7.2.7 beta) or do we have to fix more problems first? :D

Its been (nearly) a month, I'm going to try to get a few more problems fixed before (hopdefully) releasing tomorrow.

I am still having a similar problem in 7.2.7. I am using a hopper to pull out a pickaxe to insert into a Progressive Automation miner, but the auto-workbench freezes everytime I walk away from it. As in, it literally crafts one item after I close the GUI then stops, not even filling the hopper. It restarts the moment I open the GUI, though. I am not inserting items at all aside from manually, as just putting a single stack of cobble and sticks can last a pretty long time in a PA miner.

@belathus Looks like I only half fixed the problem :p

@AlexIIL you already found the problem? If not, we assume, it's because non-stackable items jam faster than they get extracted. So you need the same event at extraction :)