The cobble and mossy cobble have a little tile error.
Vanilla does the same. The 1.8 update was lazy and merely decreased the contrast from the old mossy cobble, instead of making a new pattern like the new 1.7 version.
Here's the properly tiling version that Sword_Frog made for the customizer:
Private Mod Note:
Rollback Post to RevisionRollBack
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