Bug: <Trees and Mobs aren't spawning>

[GromblemcGimble]

What Feature Types Apply to This Bug?

World-Gen

Other Type

No response

What Type of Bug Is This?

Annoyance

Forge Version

10.3.4.1614

The Aether Version

1.1.2.4

Is This Bug a Conflict With Another Mod?

No response

Client Log

https://gist.github.com/GromblemcGimble/5553ad75c2a8112d768779226d4cfffd

Crash Report (if applicable)

No response

Steps to Reproduce

Almost every time i make a new world

1. Generate world, gamemode set to creative
2. make sure peaceful is off, easy is on
3. make aether portal, walk in
4. notice there's no trees or mobs

What You Expect To Happen

Trees and Mobs would be littering the place like normal;

What Actually Happened

Grass as far as the eye can see; islands are still a thing but there's no trees or fauna or any other life whatsoever

Additional Details

No response

Please Read and Confirm The Following

• [X] I have confirmed this bug can be replicated without the use of Optifine.
• [X] I have confirmed this bug is on the most recently supported version of Minecraft.
• [X] I have confirmed the details provided in this report are concise as possible and does not contain vague information (ie. Versions are properly recorded, answers to questions are clear).
• [X] I have confirmed this bug is unique and has not been reported already.
• [X] If playing on a modpack, I have reported this bug to their issue tracker already.
• [X] I have confirmed that I'm reporting a bug in The Aether I, not The Aether II.

[GromblemcGimble]

update: found the issue; the hbm mod space fork is causing the issue