Hoppers fail to pick up items frequently

Expected behavior

A hopper item filter collecting an item in a waterstream while moving at the appropriate speed, with the 8gt hopper cooldown considered.

Observed/Actual behavior

Items passing hoppers and occasionally failing to pick them up

Steps/models to reproduce

Construct or use a schematic with a waterstream that has hoppers being able to pick up items every game tick. Attached is a farm that uses hoppers to filter out non-compostable items, yet they fail to do so reliably and the composters become clogged.
Potatocraft simple NTF.litematic.gz

Plugin and Datapack List

AnvilColors, BuycraftX, ChatUtilitiesPlus, CommandAliases, CommandDefender, DiscordSRV, Essentials, EssentialsChat, Infinity-Filter, JoinDate, LiteBans, LuckPerms, Matrix, OldschoolKill, PlaceholderAPI, PremiumVanish, ProtocolLib, SuperbVote, TAB, TCPShield, Vault, ViaBackwards, ViaVersion, Votifier

Folia version

This server is running Folia version git-Folia-"399c242" (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: 399c242 on ver/1.20.2)
Unknown version
Previous version: git-Folia-"c76cca5" (MC: 1.20.4)

Other

These are the hopper configs that are being used.

Spigot Settings
hopper-amount: 1
ticks-per:
hopper-transfer: 8
hopper-check: 1

Start by reproducing the hopper item-filter setup with the attached Potatocraft simple NTF schematic, using the reported 8-game-tick hopper cooldown and hopper-check interval of 1. Compare item pickup behavior across repeated runs and verify whether hoppers reliably collect eligible items without clogging composters; no source file or test is identified in the issue.