In the recent 1.8 snapshots, Mojang made cobblestone generate under gravel paths to prevent it falling into caves. This doesn't fix the problem. I found a village in a world and I saw that the supposed "cobblestone" under the path just generated at the bottom of the cave below the gravel.
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Comments 6
Duplicate of MC-45088
Changing to duplicate of MC-1948
Different issue, MC-45088 is the correct duplicate.
Please provide the seed for this world.