Directional and Sky light is stationary.
To reproduse this: create empty map(without world partitioning) → add terrain → add lake → configure sky and directional light to stationary-> click bake lightning only.
The same scene with directional light configured to moveable.
Cast shadow disable everywhere where i can fing this option(water object, material). Sky light cast shadows is uncheked.
How disable static shadows from water mesh in unreal 5.3?