Need help with datapack overlays.

I have a datapack with many structure having new blocks from 1.21.9 and other versions above 1.21. To support 1.21x i made new versions of structures with new blocks replaced. I put structures with replaced blocks to the default "data" folder and added versions with new blocks as an overlay for 1.21.9+. But it doesn't work, it just places old structures even if i'm on 1.21.9. 
my datapack: https://modrinth.com/datapack/mingen