Flicker problem

I’m having a little problem when I export movies, for some reason the entire scene flickers for an instant around the 1 second mark. This is one of my first projects in Unreal so I’m having trouble understanding what could cause this, any help would be appreciated.

S-Dot, I’ve rendered out this scene twice with the same result, I’m using Sequencer to render out .png’s. I’ve attached two stills from the moment the change happens and I’ve realized that it’s not really a flicker. It seems like what’s happening is the scene changes slightly and from that point on the change sticks. It looks like the motion blur is missing from the After frame and maybe more AO?

thadkinsjr, yes I have an issue with the glass as well, not sure what’s causing that either.