Light Complexity viewmode doesn't work in Forward Rendering?

Hi all,
Just switched to Fwd rendering (doing a VR project) and it seems I can no longer see/use Light Complexity viewmode. Is this normal/common when using Forward rendering ? When I click it the entire scene goes black.

In my project this works just fine, are you sure you actually have a light in your scene?
Maybe try to add an extra one and see what it does?

Not sure what toggles this, but its an easy fix.

Under "SHOW’ click “use defaults”. This should fix the issue.

Will most likely fix your ambient occlusion preview as well if someone runs into that.