I have lost my self shadowing. The cloud on the left I made with UE4.5 the could on the right is the same scene I recently opened into UE4.12. As you can see it has lost its self shadowing.
Is this a bug? Anyone know how I can turn self shadowing on again?
I have been trying to figure this out all day. I have included my particle in a .zip file [link][1]. I hope you can help me diagnose the problem.
