I am sorry for the trouble you had while converting/exporting the PDF file. Please try using a different browser like Chrome, or Firefox, or Safari and check.
If you cannot use another browser, then try clearing the cookies and cache of the browser and check.
For testing purpose, connect the machine to a different network environment like a guest wireless network or connect the machine to a mobile hotspot and export the PDF file.
Are you experiencing the issue with one specific PDF file or is it with all the PDF files?
Try with a different browser to export the PDF file and share your observation.
I had done all this before I posted
Thank you for sharing the details and sorry for the trouble. Are you experiencing this issue with one specific PDF file or is it with all the PDF files?
If you are using the browser to export the PDF file, what is the URL you are trying to access?
If it is specific to one file, is it possible to share the file with us so that we can test it at our end as we are not able to reproduce the issue of File conversion with any PDF file. Share the file by private message only How Do I Send Private Message | Adobe Community
You may refer and try the suggestion from File conversion error | Adobe Export PDF
Thank you for sharing the details and sorry for the trouble. Would you mind trying to export the PDF file using the incognito mode in chrome and check? Press Ctrl/Cmd + Shift + N to open the incognito window.
Is it possible to share a sample file with us so that we can test it at our end?
Share the file in private message only How Do I Send Private Message
I can if you really need this exact file, but since it has stopped working I just created a almost blank PDF document to continue to try, I have even gone back and used PDF files that DID convert before I starting having this issue. Is there a way to access an older version of https://documentcloud.adobe.com/link/home/?dialog!dropin=exportpdf because the new formatting seems to be when it started having issue for me, Adobe Reader DC hasnt been working for 6+ months but I just need one of them to work to be able to complete my work.