When placing coral underwater, it shows an image of tube coral above the actual coral. A similar issue happened when I placed seagrass, but instead of it being tube coral, it was an image of seagrass.

Whenever I placed fire coral in one block tall water, the water texture disappears, and an image of tube coral is horizontally on top of the fire coral. This also happens with any other coral I place. Same thing happened when I place seagrass, except the horizontal image was of seagrass this time. It does this randomly. I'll place one piece of coral and then the next has the image.