Hello,
I occasionally have a problem with photometric spotlights with corona shadows applied; they work correctly when I create them but occasionally (not every time!) if I need them in a different scene and I save them with "save selected...", they lose corona shadows and return to their standard shadows.
Of course I receive a warning at render time and I can fix them but I'd like to know what I'm doing wrong or if it's a bug.
Thank you!
Patrick
