Upgraded from Framemaker 2020 to Framemaker 2022. Publishing to PDF causes Frame2022 to crash

I just got a new computer and upgraded from Framemaker 2020 to Framemaker 2022. I have several books that I created in Framemaker (unstructured) and I use the Publish command to generate  PDF and HTML5 output. It was all set up so it worked perfectly in Frame 2020. 

I made a test copy of a couple of my books and opened them in Frame 2022. It told me I had to convert the files for the new release and also asked if I wanted to convert the Settings files from 16.1 to the newest version. I converted the files and tried to generate the PDFs with converted settings or non-converted settings.  

When I first generated the PDF, it mostly generated, but the ChapterTitle, Head1, and Head2 paragraphs tags did not display. Also the headers and footers didn't display. I thought maybe I needed to adjust how they were mapped. I tried a few things (but still didn't get those components to display in the PDF). 

I made a few more copies of the original book (before it was upgraded) and tried making some small tweaks. i don't know what I did, but now, whenever I try to publish any book to PDF using my standard settings files I've been using for a long time, Framemaker crashes. No error message or anything -it just shuts down pretty close to the beginning of the Publish to PDF process. 

I can generate the HTML5, which uses the same settings file. There are a few spacing issues I need to correct in the HTML5, but in general the files are generated Ok. 

I read there were some bugs in Frame 2022. Has anyone else had this problem and do you have any suggestions as to how I can get my PDF to generate. It appears the results are the same if I choose Save As PDF from the File menu instead of using the Publish dialog. Thank you in advance. 

Best regards, 

Marcia