Bug Description

This simple 3 block setup, using Immersive Engineering and Quantum Storage, causes the world to become unloadable. A crash will occur every time upon loading it.
Metal Barrel (IE) > Fluid Pipe (IE) > Fluid Trash Can (QS)

Exception in server tick loop - java.util.ConcurrentModificationException

Note: The in-game restore backup feature errors out and It seems to corrupt the JourneyMap data as well, I had to both manually restore a backup and delete the world's JourneyMap data to fix my world.

I'm not 100% sure if it's either a DarkPacks or IE bug, but an unloadable world is a really catastrophical bug, so I figured I'd report it.

Addendum: while this bug occurs with Quantum Storage's Fluid Trash Can, it turns out that Cyclic's Trash Void works A-OK, go figure.

Did this behavior use to work in the previous version?

N/A

Steps to Reproduce (for bugs)

1. Create a new world
2. /advancement grant playerName everything
3. Build a 3 block high contraption of Metal Barrel (IE) > Fluid Pipe (IE) > Fluid Trash Can (QS.)
   No need to fill the Barrel, it'll crash just the same if it's Empty
4. Save and Quit then Load the World
   

Logs

• Client/Server Log: 2024-04-21-7.log
• Crash Log: crash-2024-04-21_10.07.43-server.txt

Client Information

• Modpack Version: 3.2.1
• Java Version: 1.8.0_51
• Launcher Used: Forge Latest
• Memory Allocated: 16 000MB
• Server/LAN/Single Player: Single Player
• Optifine Installed: Yes, but the world also crashes without
• Shaders Enabled: Yes

World Information

• Modpack Version world created in: 3.2.1
• Additional Content Installed: 1 single other mod, FullscreenWindowed-1.12-1.6.0

I haven't had a chance to look into this at all yet, but the last release of SevPatches (which hasn't made it into SevTech yet) fixed a CME during chunk loading - you could give it a try and see if this is actually that same issue in a different hat?

https://www.curseforge.com/minecraft/mc-mods/sevpatches/files/5142938

Good news, using that SevPatches 1.12.0-15 release instead of the 1.9-10 I was using, my formerly bricked test worlds loaded without issues, so it does seem like it's the same fixed issue, kudos!

oh god it's so much worse, it's not related to the Tank or redstone at all!

@sam-kirby possible and/or worth fixing in SevPatches?