[Zubersoft]

I'm not sure why you are seeing differences between the annotation text sizes because that should scale based on how much the page is scaling. This is if the annotations were created with MobileSheets 3.0.0 or higher, otherwise the older approach is used for scaling them which doesn't work as well. As far as the black diamonds you are seeing, that usually points to a file encoding issue. If you go to Settings->Text File Settings, you can enable the "Display File Encodings" option, then load your song, tap the center to bring up the song overlay, tap the A at the top right, then "Text Display Settings", then change the file encoding dropdown to a different value. Find one that displays the text correctly and that's the file encoding that should be used.

Mike