please watch my rendered scene. i need opinions on how to fix it.

[borbafett]

Please watch that clip and tell me why the textures on the ceiling are doing that. When I go through on the timeline before rendering, everything seems fine. It's only until after I render that this problem occurs.

[castalero]

1.Check from how many lights you got shadows on.
2.Check for overlaping polygons (few polygons in one place).
3.Check your polygons for a huge n-gons (better clear all n-gons making them triangles or quads).