How remove transition lines between the different sides of the mesh?


Hi, how I can to remove this terrible “transition lines” at the edges of the meshes, which became appeared in the engine after the “refactoring of the mesh render” in UE4.22? You can observe this in the attached pictures. Anti-aliasing is completely disabled in both projects (via the project settings and the console variable).
Maybe there is a way to roll back the old mesh rendering pipeline by editing code or console variables?