Convert PPTX to PDF and autotagging issues, reading order issues on Mac

I have a Mac running OS Monterey 12.6.9. I'm running MS 365 desktop apps for Mac version 16.82 and have the latest updated Adobe Acrobat downloaded from Creative Cloud. I have issues when converting a PPTX file to PDF within MS PPT desktop app. If I select Yes to rich text cloud based service, then the file either does not convert (conversion process crashes and Acrobat auto-quits) or it converts but does not preserve the fonts in the PPTX file (even if I embed fonts within PPTX file first) and the tags are labeled correctly but are empty (no text identified by tags) and contains no reading order. When I select No to rich text cloud-based service to convert to PDF, the file converts but is not tagged. When I select autotag within Acrobat, I either:

1) get this error message: "Unable to add accessibility tags: We were unable to automatically tag this PDF, but you can manually add tags yourself. Learn more. To change other accessibility preferences, go to Preferences > Accessibility."

OR 2) the file is tagged but tags are empty and there is no reading order shown. Attachments below- "test document.pdf" is the file created with rich text service. "Test document_1.pdf" is file created without rich text service. The special fonts used are .ttf and I selected "embed all characters" in font embedding in PPT.

I have also tried converting to PDF using other methods within PTT: save as PDF, print to PDF, and export as PDF. All of these options result in an untagged document or a tagged document with empty tags and no reading order identified.