Beach Generates in the middle of a Forest with no Water Bodies Bordering it.

In the First Screen you can see that the beach is not bordering any water bodies (unless you count 2 Water-filled caves, which also maybe a bug).

In the Second Screen you can see that the mass of sand that generated in a Forest Biome Belongs to a Beach Biome.

Expected Result: The area's biome would be a Forest

Observed Result: The Beach biome generated in a middle of Forest biome.