Yes, same Bitnami stack but now it’s on a much fresher release (PHP was 7.2.13). Is there an underlying PDF library that the plugin makes use of, which I can check to see if there’s an update needed?
One other change that comes to mind is that I previously had Imagick disabled, but it’s currently available for WordPress, in case the plugin uses that.
We have things configured to generate HTML rather than a PDF for the time being, so we can still print invoices to include with shipments, but the PDFs would be preferable. I also wanted to note that the PDF preview shown in the settings (which I realize is actually an image and not a PDF) does display the text properly.
Thanks again!