PDF rendering issue

My marginNote 3 app on Mac cannot display handwritten contents in a PDF file generated by Sony digital paper. My handwrItten notes can be rendered through MacOS 's original pdf reader but not by MarginNote3 itself even if I switched the PDF render setting. I have attached the PDF note so that you guys can check what’s wrong. Stokey_Lucas_notes.pdf (1.7 MB)

Hello,
I have submitted this problem and your PDF to the developer.
Please feel free to contact us again if you need any assistance and we will be happy to provide further help.