This issue only happens to me in BO ColdWar.
I used to fix it by switching Display Mode to GPU Only or turning off Shader Cache and restarting shaders, but that doesn’t work anymore. Without Ray Tracing (like in the first pic), I basically have no shadows at all. When I turn Ray Tracing on, the shadows come back (like in the second pic), but something still feels off and in some areas the shadows randomly look lighter or darker.