I don't get any error message, I create a quote or invoice in QBO which gets cc'd to me, when I open the PDF it is garbled, I use Bluebeam but it is the same when I open in MS Edge. The customer who receives the invoice also has a garbled PDF.

I am right now using a surface pro and am getting the same, I get the same on my PC at work and it has just started happening on my work colleges work PC but he does not use QBO as much as I do so has only noticed it a couple of time. 

PDF's open fine on MAC and that computer has not seen the garbled invoices we have.