Some channels might look wrong in Adobe® Acrobat® when exporting to PDF with Flatten Overprints enabled.
Symptoms
Example: The Cyan separation in Acrobat® shows a wrong image.
Solution
When using Flatten Overprints while exporting a PDF in ArtPro, use the Lossless Compression in the Images/Links tab. Using the High Compression JPEG will cause a wrong image, due to the fact that it's known for its destructive behaviour.