I get numbers instead of the Title of the song on my IPad reader?

Not sure what I’m doing wrong? I was using MuseScore 2 since it was first introduced. I had some different issues but they seemed to get resolved mostly.I tried to change to 3.6 but I still get numbers instead of the title? This is when I send the score to the reader via email. I’m 73 still playing but not too tech savvy! Any advice would be greatly appreciated!