SpotLight seems to have a delay to reach full intensity at start

You can see in this short video my issue: SpotLight seems to have a delay to reach full intensity at start - YouTube

I can’t find any option in my SpotLight, World Settings nor in my Actor related to that.

SpotLight settings:

Cube (Actor) settings:

Camera settings:

Hi!

Maybe it’s auto-exposure?

The auto-exposure is disabled, anyway, the issue seems to be solved, I will post the answer.

The issue just fixed by himself when I close and open the project, weird, I didn’t touch anything.