Bedrock doesn`t generate in Badlands or Wooded Badlands

The bug

For some reason, bedrock is not generating under Badlands & Wooded Badlands

How to reproduce

• Create a world
• Do /locatebiome badlands
• Travel there
• Go under Y -64

For example:

• Seed: 6862780516614435520
• -171 -90 -193

Observed result

No bedrock generated

Expected result

Bedrock would generate