mc 1.17 (java)
fabric-api-0.35.1+1.17.jar
indrev-1.10.0-alpha.1.jar

non of the ore's are generated
not in existing word ( new chunks)
not in new test world

regards

found the problem 👍
everthing is ok if you
DONT't USE the "CavesAndCliffsPreview.zip"

that means worlds high only 0+ not 0 to -64 or +512
NOT USABLE in EXISTING 1.17 snapshot worlds