In version 0.26.0, custom features don’t seem to generate. My mod, which includes a “End Forest” biome, should have naturally spawning End Trees, a custom feature that worked when spawned in a custom Overworld biome in 0.25.7, no longer works in 0.26.0. I have also noticed that in 0.26.0, any features such as ores that I had included in custom biomes or in biome modifications, would not spawn. To recreate, just attempt to make a custom feature spawn anywhere in custom biomes, especially the End.

this same thing is happening to me

Please open a new issue if such problems are still occurring in 1.18+.

Could you provide a minimal example to reproduce this?

Of course, sorry I didn't get back sooner.

Here are a few of my pastebins from the mod...

Registry, Feature, and Biome

But when I generate the biomes and tp to them, no features generate. I then checked to see if my custom ores were still generating using BiomeModifications in the Overworld, and they were not. I then took away the end biome and tried the custom feature, as well as custom ores, in the wiki's tutorial biome and again: nothing happened. When I reverted to 0.25.7, everything fixed itself, except there is no End Biome API, so I'm not able to create the custom End Biome.

0.26.0:

0.25.7: