Could you please post a screenshot with the pertinent Panels visible?
Is there a background the line can contrast against, might the Line be set to overprint, …?
Hey c….. thanks for asking for the screen shot of the panels. As I studied them for awhile before taking the shot, I noticed that I have the effects set to "multiply" instead of "normal" !!!
Stupid, but I probably would never have caught it if you hadn't asked to see my panels. Thanks!!!!!
Finding the cause for an issue oneself is probably a better learning experience anyway.