Hey there @FrenchFreilly! Welcome to the community! Are the faces that are shown flickering at all? Is this all meshes in all levels or just that one map? Is the material correct?
That kind of resembles an issue I’d seen before where the member had set their near clip plane to 0 or close to it but that’s not likely the case here. After mostly solving it, meshes began looking like yours (not pictured in the thread).