Worlds do not generate properly when created through console

[fishwanter]

Problem

When I create a world through the console the world generation gets stuck at 6% every time.

Solution

No response

Minecraft Version

1.21

Iris Version

v2.8.1-1.20.1

Log

https://pastebin.com/AvGHJGV6

[RePixelatedMC]

1 where full log?
2 probably having not enough computation power.

Im adding a system that enabled "low performance" iris for lower end systems

[fishwanter]

This only happens when a world is created through the console. I have no problems creating the same world through a command in game, so I don't see how this could be related to a performance issue on my end. There were no errors shown in console and this happens with the default overworld pack.