Game keeps crashing with this: "Caused by: net.minecraft.ResourceLocationException: Non [a-z0-9/._-] character in path of location: minecraft:#is_overworld"

[ItzDogo]

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Issue description

When adding a block to generate in the world, use the "is_overworld" tag and for some reason it doesnt like it and causes it to crash

How to reproduce this issue?

Step 1: Add a block
Step 2: Make the block Generate in #is_overworld
Step 3: try and launch game

Operating system

Windows

Details

MCreator 2023.4
Fabric Generator 1.20.1 - 1.10

Example workspace

No response

Logs

https://gist.github.com/ItzDogo/c695af58c5427487f82659cd08721a29

[ItzDogo]

So I found out its from Mobs spawning, if you use the tag #is_overworld it will cause crash after crash