Got it; thank you for taking the time, MaverickMongoose.
Going by both images, the shadow is the object shadow, not a show on the floor. This would have led to a shorter reply above.
Nice to have it discussed in the forum from many angles; it is hopefully of use to someone.
Yes, that is a tricky one. It requires deciding what light hits what based on the light in the source. I think default off is good, but well, case by case…
