[Zubersoft]

The best thing to do is to long press that song on the library screen, tap Share->Export as .msf and share that .msf file with mike@zubersoft.com. You may need to upload it to the cloud if it's too large to send over email. I will then investigate this to see what is happening. It does seem like a link is being triggered in the PDF which goes back to the first page. MobileSheets supports PDF hyperlinks, so that may be getting triggered.  That error message is probably from MobileSheets trying to load a path listed in the PDF in the hyperlink.

Mike