An Autocrafter Bug

[yixiaaaaa]

This machine often leaves some ingredients remaining in the subnetwork without starting the crafting process. For example, with a recipe that includes non-consumable items, if I input 64 sets of materials (excluding the non-consumable ones) into the subnetwork, it might leave 1–2 sets of materials unused in the subnetwork. Even if I take them out and put them back in, it still won't start crafting. I'm not sure what causes this, but this issue has existed since version 1.6.0 or even earlier, and it still persists in 1.6.2
I'm not sure whether this is caused by the recipe containing non‑consumable items.

[Aedial]

1. Are there multiple recipes in the machine consuming these inputs? Fair allocation of resources divide available resources (rounded down) by the number of consumers in the machine.
2. Is the occupancy 100% (lower would point to 1.)?
3. Is it consistent or random (indexed by resources sent)?
4. Is there a specific set of recipes that are affected or is it random?

[yixiaaaaa]

1. I don't think so – at least, there is no case where multiple recipes require the same material.
2. I input all the materials completely; they were sent from the AE main network to the subnetwork.
3. Could you explain the issue in more detail?
4. From my gameplay experience, the same recipe always gets stuck at the final set of materials. For example, when I craft Blood Magic's ritual stones, it always leaves one set of materials unused in the subnetwork and doesn't craft.

[Aedial]

So, if I understand right.

• You have a recipe that asks for 8 items.
• You send 64.
• It doesn't consume the total, leaving 8-16 items behind (1-2 of the recipe).

And it is indiscriminate, the case for all(?) recipes put in the AutoCrafter?

[yixiaaaaa]

Not all of them; for example, the recipe for the Super-capacity Rune:

As you can see, I just placed an order for an output of 20, but it got stuck here with two sets of materials left. I'm not sure whether you can reproduce this recipe issue; if not, perhaps you could try several different recipes.

[yixiaaaaa]

The recipe for the Mechanical Controller also has this issue. I just input 20 sets of materials, and it left one set remaining in the subnetwork.

[Aedial]

1. Can you see the same quantity on network with a terminal? Not seeing the same would imply stale AE2 cache.
2. Does it do the same if you switch from dank to cells? Could be on the Dank side.

[yixiaaaaa]

1. Yes, the quantity I see on the main network is indeed short by a few.
2. I replaced the subnetwork storage with cells, but it still doesn't work – even after re‑placing the order.

[Aedial]

Nope, cannot reproduce at all with a minimal setup. Be it every second or every minute, requesting 30 or 100k, everything goes through just fine.
So there has to be more to it. Cannot do anything if the report is is unreproductible.

[yixiaaaaa]

As I mentioned earlier, it doesn't happen with all recipes. After I removed the output interface, the issue became more noticeable. I'm not sure which step is causing this discrepancy – maybe you could try a few more recipes?

[yixiaaaaa]

I have tried over a dozen recipes that contain non‑consumable items, and only the Mechanical Controller from MMCE and the Super‑capacity Rune from Blood Magic have this problem. I also placed orders with quantities ranging from 10 to 10,000, but the situation did not change.

[yixiaaaaa]

I just asked my friend, and he has a similar issue. The difference is that the recipe he has trouble with is the bifrostperm block from Botania, while I just tried that recipe and didn't have the problem. So does this issue occur with a small probability and vary from player to player?

[Aedial]

Honestly, it there is no issue related to "fair allocation" (multiple recipes in the crafter sharing inputs), it'd have to be related to some AE2 addon. Idk, the code doesn't show anything that could relate to this issue.

[Aedial]

Only other thing I could think of (but quite unlikely with how this error happens) is a few items having different NBT than in the recipe. The crafter does not support NBT for the ingredients in the network, which could be the case if the same few items are cycled to the subnet.