Issue Description:

Client crash (with VanillaFix installed just a "back to main menu crash") with conduits. (I think)
"Ticking entity"

What happens:

I leave my mob farm and then I got the crash.

What you expected to happen:

No crash.

Steps to reproduce:

Difficult to say, because it's on a multiplayer map and I just leave my mob farm area.

Affected Versions:

• EnderIO: 5.0.39
• EnderCore: 0.5.44
• EnderIO-endergy: 5.0.39
• GasConduits: 1.0.0
• Minecraft: 1.12.2
• Forge: 2796
• SpongeForge? no
• Optifine? no
• on a Server, but only client crash

Crash log:

https://paste.dimdev.org/jamiyofefa.mccrash

Picture from my area:

Remove vanilla fix and try again

I only can remove it from the client, but I don't know how to recreate this crash, because I thinks its random with the loaded terrain. (10 chunks around the player)

If it can't be reproduced without vanilla fix then it most likely is on them, otherwise there isn't enough to go off in the crash log alone

This is vanilla code crashing because a vanilla data structure contains invalid data, That data structures is normally not accessible to mods, and the vanilla code that can access it would not be able to put invalid data in there without crashing itself. So some mod is forcing its way in there and is messing things up.

In the last modpack version (with EIO 38) we never had a crash like this, I try it now without VF.
Used modpack: https://minecraft.curseforge.com/projects/deep-night?create=success (version 1.7 atm)

Edit 1: Okay, for now no crash, so the question: can we figured out which mod could cause this crash ?