Help with Removing White flashes in Sequencer Render

Hello! I’m having an issue with my render in using sequencer. It has these white flashes that show in the first ten or so seconds of the shot whenever a new part of the scene is introduced to the camera for the first time. The light is baked, I’ve tried pushing the cine camera actor into the negative frames to have it pre-render. Neither worked. I’m not sure what else to try as I’m quite new to Unreal.
Any help would be much appreciated!
Here’s the render: 19 Full w Assets 2.mp4 - Google Drive

Explanation:

Untitled-1

The white flashing is caused by occlusion culling.
Meaning, objects behind other objects are occluded, or ignored in the rendering pipeline.

The doorway occludes the objects behind it from the camera.
Anything outside the camera’s frustum (angle of view) is also occluded.

As the door opens, you see a piece of the object, but that isn’t enough to trigger the mesh to be loaded until the door exposes more of the mesh.

Solution:

Try to disable occlusion culling
Project settings > Engine > Rendering > Culling