I recently had a detail view disappear in this manner. I RMB’ed on the detail circle->Edit Sketch and found that somehow the sketch circle driving the view had become no more. No the circle had not moved away, it was gone. I drew a new circle and confirmed the sketch. The view reappeared happily. The interesting thing is SW won’t let you delete the profile and leave the sketch. If you do it acts as a cancel rather than confirm. So how did the sketch become empty?
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