Hi, we have found an issue in 15.6 and 15.6.1 where certain PDF's won't open. We can open the PDF in 16, but not in 15.6 and 15.6.1 using the iOS in a native format, this occurs when opening the pdf that has been sent as an email, or via WhatsApp for example.
I have tired to upload an exampole of the PDF we are having an issue with, but I can't sadly.
Any ideas?
