HAD THE SAME PROBLEMI had the same problem. WENT TO OBJECTI used / FLATTEN TRANSPARENCY.Object > Flatten Transparency
(WITH THE ART SELECTEDwith the art selected) FIX ITand it fixed it. WHY
Why? I HAVE NO IDEA BUT IT DID WORKhave no idea but it did work, EVEN THOUGH THERE WAS NO TRANSPARENCY APPLIED TO THE ART THATeven though there was no transparency applied to the art that I KNOW OFknow of.