Bug Description

The Mushroom Fields Enderman does not naturally spawn as intended in the Mushroom Fields biome. I managed to fix it using a datapack and I've provided more details below. What I did is more of a workaround because the real issue seems to be something with Forge Tags.

How to Reproduce?

1. Go to a Mushroom Fields Island
2. Spend 10 hours trying to encounter a Mushroom Fields Enderman
3. None are found

Expected Behavior

To encounter at least 1 Mushroom Fields Enderman in 10 hours.

Version

1.21.1-2.0.2

Mod Loader Version

21.1.119

Mod Loader

NeoForge

Logs or additional context

I'm playing on the ATM10 modpack (version 2.36) and there is a quest to kill 1 of every enderman variant. Little did I know how difficult this quest is (impossible really). What I ended up doing is create a datapack that modifies the spawn configuration of the Mushroom Enderman.

What I did was the following:
\data\endermanoverhaul\neoforge\biome_modifier\mushroom_fields_spawns.json

• Removed Spawn Cost entirely
• Bumped the weight up to 10

\data\endermanoverhaul\tags\worldgen\biome\mushroom_fields_spawns.json

• Added the vanilla biome (minecraft:mushroom_fields) to the top of the list

Datapack Download Link

Other enderman variants are not affected.

Code of Conduct

• I have searched the issue tracker and confirmed that the issue has not been reported
• I have checked the FAQ (if one is present) and my issue is not listed
• I have verified that I am using the latest version of the mod
• I have verified that I have installed all the required dependencies for the mod
• I have verified that I do not have Optifine installed. We will close issues if we detect Optifine is in your pack. We cannot fix Optifine issues. Please do not report issues with Optifine present.

I managed to encounter every other Enderman Variant so I can confirm that I only had an issue with the Mushroom Fields Enderman not spawning.

I can confirm this.