Rendering in Matinee

Hello,

We are makeing an animation that will be render to movie from UE. Framerate and realtime render isn’t exactly neccesery because it’s not a game.
We setup few levels streamed to one persistent level. Due to lighting I can have only one level visible at once.
My problem is when I change camera in matinee to next level there are 1-4 broken frames where new level is streaming.
For example: The first frame- only background, second frame- ground and partialy enviro, third frame- rest of enviro and characters, forth frame- post process.
Is there a way to pouse matinee so the level would stream before I start the animation on it? Or anyone have idea how to preloade my levels before camera gets ther? Maybe there is another way that we havent though about?