hopper occasionally does not suck up item

[cgw2023]

Expected behavior

hopper suck up item instantly when item goes through its above

Observed/Actual behavior

hopper occasionally does not suck up item

Steps/models to reproduce

(translated)
1 place flowing water above a hopper
2 place another hopper below the first hopper and use redstone signal to lock it
3 put 5 set of required item or 1 set of required item in the hopper and fill up the other slot with random full item in the hopper below to make a hopper filter
4 place 1 required item in 1 slot and put other random item in other slot in upper filter

youtube video demonstration:
https://youtu.be/bVUyJSLnCgo

Plugin and Datapack List

AnnouncerPlus, AntiPopup, Attollo, AxInventoryRestore, AxShulkers, BetterRTP, BlockLocker, BlueMap, Chunky, ChunkyBorder
CMILib, CodFrame, CoreProtect, DecentHolograms, DeluxeMenus, DiscordSRV, DragonDropElytra, Essentials, EssentialsChat, EssentialsGeoIP
EssentialsProtect, EssentialsSpawn, FancyNpcs, floodgate, FoliaFlow, GreenChunk, GSit, HeadDrop, Kaiivoid, LuckPerms
Matrix, PlaceholderAPI, PlayerWarps, ProtocolLib, Residence, ShulkerRespawner, spark, TAB-Bridge, Vault, ViaBackwards
ViaVersion, VillagerOptimizer, zAuctionHouseV3

Folia version

This server is running Folia version git-Folia-"3843340" (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: 3843340 on dev/1.20.2)

Other

spigot.yml

    ticks-per:
      hopper-transfer: 8
      hopper-check: 1
    hopper-amount: 1
    hopper-can-load-chunks: false

paper-world-defaults.yml

hopper:
  cooldown-when-full: false
  disable-move-event: false
  ignore-occluding-blocks: false