My blueprint (ex. sun rotation) doesn't work in matinee.

Hi! I’n designer and not a programmer. Sorry about that.alt text
I prepare the scene and the cameras to create a video in matinee.
I need to insert inside the video some event like the rotation of the sun and some material changing.
I compile blueprints and linked with matinee so everything works if i press play on Unreal Engine:
Matinee camera start and blueprints work.
But if y press play in matinee (and i need that to be able to rec the video or create the film) camera works but not the rotation of the sun.

AND WHY MY SKY STILL WITH SOME LIGHT DURING NIGHT TIME? HAVE YOU SOME TUTORIAL TO SET A NICE SKY WITH NICE COLOURS AND LIGHT? (SHADOWS OF MY CLOUDS NEVER MOVES)

Thank you so much