If you go to Settings->About, what version of MobileSheetsPro are you running? It doesn't appear the PDF was attached (size limit?). If you can email it to mike@zubersoft.com, I can look into this. It would help even more if you can long press the song on the library screen and select Share->Export as .msf. That .msf file would allow me to export the same exact song you are using, and you wouldn't need to send the .pdf file then.
Thanks,
Mike
Thanks,
Mike