I was designing a custom RGB document for a power point presentation, a rather large document with pictures. Suddenly (if I recall) after saving the document to PDF > Smallest File Size, I notice that ALL MY SWATCHES changed, from bright to dark. I figured it was a RGB > CMYK issue so I went and check, but the document was still RGB. I will post a screenshot with some comments.
Please let me know if you need anything else. Thank you]1