Bug with sun

[Argor12]

Bug with sun

I need for help. I don't know this is a bug or not, but in the editor i want download the sun do everything as said in the video Klabautermann. But the sun does not appear in the sky

 

[Benzenzimmern]

Have you dragged "meshsun" onto your level and activated an area environment? If yes, then the sun should show up when it is daytime.