The new caves, the noise caves, dont generate cave air. They generate normal air. The lava that generates under y -53, only generates in place of cave air. This means that lava can generate weirdly if normal caves intersect with the noise caves low in the world.
Environment
Java 1.8.0_281 64 bit Windows, CPU 4x AMD A8-7600 Radeon R7, 10 Compute Cores 4C + 6G 3.10 GHz, 16G RAM
Linked issues
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Comments 6
Does MC-216736 describe your issue?
Yeah, altough in this bug report i add the cause of this issue, the noise caves that do not generate cave air, and lava only replaces cave air, not normal air.
I'll add it to MC-216736, thanks.
I see it is marked as duplicate, but the problem in this case is not the cave air, it is the weird lava generation