I'm using InDesign from iCloud. I drew a round corner object box, white fill and added a drop shadow - The shadow was added using the Effects panel. The object sits on red background. On screen the shadow has rounded corners. When printed in color (this is important) to my Xerox DC250 w/EFI RIP, the shadow has a secondary faint shadow with square corners slightly larger than the shadow for the object. When printed as a Grayscale it prints properly.
I made a PDF and it printed with the same results.
I then made the same object in Illustrator and it printed correctly.
You might be suffering from Yucky Discolored Box Syndrome. Here is the cure:
Your print dialog box settings might vary, but this will probably defeat this digital printer phenomenon.
Hope this helps,
Mike Witherell in Maryland
There are about 400 spot colors that can be mapped to a digital color space depending upon whose RIP is being used. None the less, this was not an issue in the past. Why use a spot color, because it may give the client the look they want and I don't have to spend significant fiddling with a mix to make them happy. After all, they are paying the bill.