Can’t print stamps/mark ups

Hello,

I'm using the Adobe Acrobat Reader to try and print a PDF. The PDF has a custom stamp on it. I've tried checking the box to print "Document and Markups" and "Document and Stamps" - it prints the document but not the stamp. I've tried scanning the document with a PDF scanner on my phone and printing that - no stamp. I've tried converting the PDF to JPEG and printing that - no stamp. I've tried to convert it back from JPEG to PDF - no stamp. How do I print this stamp?