I'm trying out this template (day/night animated sky).
Accoding to the manual;
Actions: none
Needs: none
When I run the level the top of the skybox shows clouds and the four sides and the bottom are plain blue, and nothing happens.
I looked in the file and there is a var duration and always zero.
Does this var not has to have a value?
And if so, where can I fill this in or do I have to declare this var;
var duration = 10; or something like that.

EDIT: The four sides show mountains, only the color above the mountains is different than the skycolor.