I wouldn't call it a Reader problem. I would be more inclined to place the blame on the tool used to create the PDF. It doesn't seem to comply with Adobe PDF standards.
If you use a third party tool to create a PDF, you may need a third party tool to view it.
The tool was written by me, and generally it produces correct pdf, but for a specific data set something illegal is happening I can't put my finger on. Are there recommended tools for validating pdf?
Thank you for your answer,
Are there recommended tools for validating pdf?
Adobe Acrobat Pro.