Sands and gravels can stay in the air as long as there is no player influence on the world formation. Because during the formation of the Earth, sands can be suspended in deserts and gravels in the Nether. This is not harmful to the game and may even prevent sand and gravel from covering the water and lava underneath. But it would be better to fix it.
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Duplicate ofย MC-750, which was later resolved as "Works As Intended".

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We're tracking this issue in MC-750, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
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