I have just edited a song on my PC, copied it into the BB2Go folder, generated the .mp4 version, and downloaded it on my iPad.

When I go to Open this new song (File=>Open) I see a song called "Untitled", with a style "_Boogie1", settings of 140-C-1-16-3 and no chords on the screen, and this remains even after I've chosen my new song.

When I try to play this unknown song, I get the error message:

"Band-in-A-Box
The operation couldn't be completed. (OSStatus error 1954115647.)"

This behaviour survives a cold-boot of the iPad.