Scene is broken in latest Engine Version

When opening my scene in 4.18-4.19 it has broken shadows/objects that won’t cast shadows, shaders that don’t render in the viewports but do in the material editor, exponential fog is rendering differently than previous version as well as many other graphical differences i’ve noticed.

I tried a few things to fix and one of my assumptions is that it may be video card related combined with deprecated features in the newest versions of unreal.

Or maybe some Unreal settings I dont have set right?

Im using an gtx 970, has anyone seen this happening or have any ideas on how to fix? Thanks