In the new snapshot all the oceans floor generate like caves, with stone, diorite, granite, andesite, etc instead of sand, gravel, etc in their corresponding biomes
Environment
OS: Windows 10 Home 64 Bits
CPU: Intel(R) Celeron(R) CPU 4205U @ 1.80GHz 1.80 GHz
RAM: 12,0 GB
Java: (build 1.8.0_231-b11)
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We're tracking this issue in MC-214783, so this ticket is being resolved and linked as a duplicate.
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