Describe the Bug

Currently have 2 andesite funnels on a belt hooked up to a Tom's Simple Storage inventory connector. Any item dispensed by the andesite funnel begins to duplicate? Have tried it so far with trapdoors, kelp, and waystones (modded item). Duplication stops if I completely clear the belt, manually right-clicking.

Reproduction Steps

1.Simple straight kelp belt with andesite funnels on either end.
2.1 funnel is attached to a Tom's Simple Storage inventory connector. 1 funnel is attached to a chest next to a portal storage interface.
3.Place items into the chest that funnels the items onto the belt.

EDIT: Duplication seems to occur upon entering the collection andesite funnel.
...

Expected Result

Duplicates items until belt is completely cleared manually by right-clicking.

Screenshots and Videos

Crash Report or Log

No response

Operating System

Windows 10

Mod Version

0.5.0i

Minecraft Version

1.19.2

Other Mods

https://pastebin.com/v9HxJgea

Additional Context

No response

Can't reproduce. Can I get a video of it happening or a schematic of something that causes it?

I have the same issue and made a schematic.
funnel_dupe.gz (renamed because GH restrictions)
To reproduce just place an item on the conveyor.

@TropheusJ I tested this on Forge, no bug there. The issue might be somewhere in ItemHelper.extract, for some reason the Forge and Fabric implementations of that method are completely different.

Schematic helps a lot, this is a duplicate of #920