Describe the Bug

I had a brass funnel getting stuff from a chest to a belt, 16 items at a time. I added some chain leggins to the chest, and the server crashed. I'm guessing the funnel tried to stack them.

Reproduction Steps

1. Connect a brass funnel to a chest.
2. Set it to output 2 items at a time.
3. Add two isntances of an item that doesn't stack to the chest.

Expected Result

The game crashes.

Screenshots and Videos

No response

Crash Report or Log

No response

Operating System

Ubuntu 22.04

Mod Version

0.5.0e

Minecraft Version

1.18.2

Other Mods

modpack: All of Fabric 2.0.4

Additional Context

No response

Same problem...

My game was saved a few minutes before the crash, the chest was empty when I got back.
If your chest still has sand paper, I suppose it will continue to crash.
You may have to edit the world (MCEdit?) to get back.

Same problem. In my case I connected the funnel to a chest with some sand paper and when I adjusted the funnel the game crashed. Unable to re-enter that save.

need the log

I can reproduce this error following the steps above. Also I'm attaching screenshot and log here.

What I did later: put several potion (unstackable) into the chest in a short time, and game crashed immediately.

crash-2022-11-27_23.54.01-server.txt

For others encountered with this problem, you can try deleting the funnel to get your save back working.
My friend's blogpost on steps to restore our save after triggering this bug.

If you have a funnel set to 20 items, what should be the correct behaviour:

• output 1 potion as soon as possible
• output 1 potion at a time when there are at least 20 potions in the chest
• output 16 torches as soon as possible
• output 16 + 4 torches as soon as there are 20 torches in the chest

If you have a funnel set to 20 items, what should be the correct behaviour:

Make it simple: Output 20 torches as soon as possible.

If the FilterAmount is higher than an item can stack (1 or 16), then that kind of item will never be exported or imported.

duplicate of #561