pdf markup sent in email appears blank

I use my iPad Pro (13.2) for signatures for business documents. It's worked flawlessly in the past, and because I travel a lot, I like to be able to sign documents on the fly.

IT IS NO LONGER WORKING!!!

Oh, I can pull the .pdf up from my email. Sign it and send it back. But the recipient ends up with a blank document. I appears as filled out when I pull the document up in my "sent" email box.

I've been told this is a "known bug". Well, can someone give me a work around? Other than printing out the documents - I've been doing that for the past month or more since this issue started.