Redirector Modern Seems To Cause Ghost Block Issues For Players

[BlackMitz]

Specific mod for which you open this issue

Redirector [Modern]

MC version & mod version & loader version

mc: 1.18.2, mod: v5.0.0, forge: 40.2.21

Latest log

latest.log pastebin, modlist pastebin

Steps to reproduce your issue

Issue

I had recently updated my personal modpack from a known stable version, adding Redirector [Modern] to help with server-side performance. After 1-15 minutes of starting up the server, every block being placed by a player turns into a ghost block. Everything else works as intended: breaking blocks, interacting with blocks and entities, moving, and changing dimensions.

Setup

• RaspberryPi5 - 8GB
  • Ubuntu 24.04.1 LTS
  • M.2 hat
    • 1TB SSD
  • Active Cooler
  • 3GHz overclock
• Use itzg/minecraft-server image for docker
• Allocate 4GB of RAM
• USE_AIKAR_FLAGS: "true"

Steps

• Start server
• Wait 1-15 minutes
• Place a block (seemingly successful client side)
• Hit same block, should disappear, click in inventory where item was, amount should revert to how it was before

Steps Taken to Isolate

Mod list is in pastebin link. I accept that my isolation attempts excludes the mods I had in place already which could also be part of the issue. Seeing however that this mod modifies access to values I figured it would be a good place to start.

• Updated Java version on client
• Removed one-by-one new mods on client
• Revert back to stable version to confirm stability: Confirmed stable
• Started removing mods (non-performance related) one-by-one with issue still persisting after removing all new non-performance mods
• Finally remove Redirector [Modern] and issue no longer exists