Custom Biomes not working on Win10 with 1.16

I have tested several addons with custom bioes that work perfectly on iOS (iPad Pro) with 1.14.6 (Experimental Play). But those very addons in the same world seeds, do not work on Win 10. I have tried several addons, same result, it simply loads the vanilla world. I have tried with Experimental Play and whithout, nothing works. Yet other addons, structures, etc. are working fine.