Looking for help with IEEE PDF eXpress [D]

I was trying to validate a manuscript for Camera ready submission for CVPR, one step among the many includes a validation of the manuscript using IEEE’s PDF eXpress, even though my manuscript follows all official formatting rules, I keep facing this error while trying to validate :

Failures: Failure (Corrupt PDF: Parser error) occurred during Gather filters information

Did anyone face this before, will be glad to hear from you!