Forge version: 1.16.5
Twilight Forest version: 4.0.515
Link to crash log: -

Steps to reproduce:

1. Have Twilight Forest installed before step 2
2. Make a new world

What I expected to happen: new world to be generated

What happened instead: game freeze once world generation counter reaches random percent

This issue is not happening if world was created without Twilight Forest and TF was loaded after generation.

Does this occur without any other mods, as this usually happens when a structure or feature from another mod is trying to generate in TF

I used absolutely minimum of mods, being them BetterEnd, Mowzie's Mobs and Infernal Expansion. I'm 50% sure that I even tried to play TF alone to see if it happens. Either way, none of these mods affect overworld generation afaik, so it's kinda weird.

@AlienXtream Is this 1.16. or 1.17?

In 1.17 we identified a few causes for worldgen stalls and fixed them. Please let us know your version if in Minecraft 1.17

+1

heavy modded. lots of structures. too bad it deadlocks before it can log what structure is failing to generate

ah. sorry. didn't realise you were already updated to 1.17 im in 1.16. i know managing multiple versions is a major headache so i wouldn't expect you to backport the fix (assuming its the problem in 1.16) but it would be appreciated. again, not expected. not even requesting it. just expressing gratitude beforehand :)