On generation, if not supported, gravel and sand blocks from ocean ruins will fall, breaking some of the suspicious sand and gravel inside

When ocean ruins generate on terrain that isn't flat, the unsupported sand and gravel blocks around the structure will fall, potentially breaking some of the suspicious blocks contained inside them.

I know this bug because when I teleport to ocean ruins I sometime hear the noise of glass breaking coming from the falling suspicious blocks.

My proposed fix for this is to put a solid base to those structures under the sand and gravel.