turtles don't lay eggs

The bug is related to the reproduction of the turtles. When I reproduce two turtles I get experience and one of them grows but there is no egg laying. The turtles that I crossed appeared on the same island in survival mode, after feeding with sea grass, it goes into the water and keeps spinning. More than 5 days have passed in the game and the laying did not occur when surrounded under sand. The same occurs in the creative mode, reproduction occurs but not the laying of eggs.