No intersection for this landing curve. Delete the curve or modify the inputs so an intersection exists. (Molded Forms, Planning)
Meaning: Failed to find an intersection for this landing curve. The inputs are not intersecting each other in order to determine the intersection.
Or, the Delete Seam option was not selected in the Planning Merge command (Two blocks were merged, but the operator decided to send the seam to the To Do List instead of having the seam deleted.)
Recovery: Re-define the landing curve by verifying that the inputs still intersect and make any necessary changes. If problem still exits, report steps taken to your support group.