Lighting "fading in" when I render a sequence. Unreal Engine 5

So I have a scene of subway tracks with a person and lights lining the roof. When I render out my movie it starts out black then the lights gradually start working. What am I doing wrong? and how can I fix this? This is UE5
So I can’t upload an attachment because it says new users cant upload attachments but here is a google link
what’s being rendered
What the lighting is supposed to look like

Hey!

This might be a better question to ask over in the Rendering subforum! This subforum is for feedback relating to the Unreal Online Learning Portal and its courses.