[Zubersoft]

Was the annotation created in landscape or portrait orientation? Can you please export that song (long press the song on the library screen and select Share->Export as .msf) and email the .msf file to mike@zubersoft.com? I want to see if I can reproduce the problem you are seeing on my surface pro 4. I don't currently see that problem on any of my devices. 

As a side note, if you create a brand new song, and annotate it, do you see the problem immediately in portrait orientation?

Thanks,
Mike