Observed behaviour

When a specific combination of mods is installed, generating nether chunks may result in a deadlock, eventually crashing the game/server (due to reaching maximum tick duration).

Expected behaviour

The game shouldn't lock up :)

Steps to reproduce

1. Setup a minecraft server, following my configuration:

• Minecraft version: 1.16.5
• Forge version: 1.16.5-36.2.2

2. Install the following mods (these are the versions I have installed):

• Tetra (v3.14.1)
  • mgui (v3.2.0)
• The Abyss 2 (v1.9.7)
• Ratlantis (v1.0.0)
  • Rats (v7.2.0)
  • Citadel (v1.8.1)
• Forbidden and Arcanus (v16.2.0-beta-4)
  • Valhelsia Core (v16.0.10)

3. Start the server (with nogui parameter, obviously)
4. Once you have reached the server console, execute the command forge generate 0 0 0 500 minecraft:the_nether
5. Watch the server lock up and, eventually, crash :)

Crashlog

https://gist.github.com/theCalcaholic/ce26ccca4921edc01b77253dc5279fb1

Tetra version

3.14.1

mGui version

3.2.0

Forge version

1.16.5 - 36.2.2

Other mods

Tetra (v3.14.1)
mgui (v3.2.0)
The Abyss 2 (v1.9.7)
Ratlantis (v1.0.0)
Rats (v7.2.0)
Citadel (v1.8.1)
Forbidden and Arcanus (v16.2.0-beta-4)
Valhelsia Core (v16.0.10)

Looks, like Forbidden and Arcanus is the culprit here. If I disable all of the other mods, nether generation still locks up, however it happens only after 1200 chunks

See also

stal111/Forbidden-Arcanus#186
stal111/Forbidden-Arcanus#184

Ok, closing then!