Demian Gutberlet Thank you
Yes, It was my mistake no to describe it properly, sorry.
It's about the exposure not a direct shadow, and for videos with different timestamp we have to lower the cloud density. It's good to have this feature like set up a rainy scene but sometimes can be disturbing and we have to play with the latitude and longitude to find an exposed position if we want clouds. I think that's why a simply switch or a "cloud transparency" slider would be perfect.
Otherwise we are impressed by the frequent updates and the quality, so thumbs up.