Issue Description

Tropicraft onBiomeLoad is causing an Null point with my own onBiomeLoad event.

Steps to Reproduce

1. Install Tropicraft along side my MCDoom doom
2. Try loading world
3. World unable to load

Tropicraft Version: 9.0.1-beta+64
Forge Version: 36.2.4

Game Log

https://gist.github.com/AzureDoom/6379d42481bd6c5b209af0e43521b291

Hmm, this interestingly seems to imply that datapack-loaded biomes don't get a registry name assigned. I'm not sure if this is something we should retroactively apply to our datapack biomes, or if this should rather be considered for MCDoom to handle in the case of datapack biomes? Or alternatively even if this should be considered a Forge issue?

I figured out the issue, was on my side on how I did the spawn checks. All fixed now!