@RaphErnaelsten Unfortunately it does for it doesn't render the light as long as the error persists, oddly after turning aura on and off a couple of times it disappears.
@RaphErnaelsten Thanks, this is our problem.
"Graphics.CopyTexture could not find source D3D11 texture object. Maybe it is a RenderTexture that is not created yet?"
It only happens with directional lights that cast shadows. There are some suggestions on the forums, but none have helped.