IMPOSSIBLE to export a Single-Page format PDF format to my Printer vendor from a facing pages Indesign document

I have tried EVERYTHING, Done about 13 Export for Printing attempts, but I never, ever succeeded in generating a single-page PDF from a 330-page book designed with facing pages. And I had no choice but creating that book with Facing pages since it is a book about art where several artworks span over two pages, the reason for having designed it as Facing Pages.  The Basic and no-brainer, EXPORT Single Page, not Spread: does not work, it creates Spread facing pages PDF. Tried to change the InDesign setup, unchecking the “Facing Pages”, no more luck. When exporting, I tried with and without the bleed and crop marks, no more luck. I even tried to make a copy of my InDesign, and crazy type of work, but if at least it would have worked, I have tried to separate all my spreads manually (330 pages !!!!) so they look as single, not facing pages anymore on the right hand side Page window: When separating the facing pages manually, it corrupted the page design and background colours. In despair, I tried every single advice I could find by asking the AI, I tried everything AI was suggesting. I totally exhausted all my options. And to make things even worse, there is not a single Help desk support from Adobe. Huge subscription fees but no help desk assistance whatsoever. I absolutely must provide this copy to my printer according to the preference they establish.

PLEASE someone, PLEASE Help me !!!