That's nice, but when I check for updates, it says there are no updates because I'm on the latest version (build 630PXi). So why is this happening?

I can't find this in the help. When practicing melodic dictation, I display the staff and the keyboard. Initially the staff shows a transparent gray bar to the right of the last entered note. Everything works OK as long as I don't make any mistakes, but if I delete a note, the gray bar collapses to ...