Okay, I think I see the problem. Were these MIDI presets marked as Personal in your first account before you copied them? They are marked as Personal in the new account, but with the username from your old account, so nobody can see them. I'll fix that in the next update so it doesn't happen again.
Meanwhile, I can update the presets in your new account; do you want them to be Personal there, too, or should I just undo that setting?