OK, I'll take a look.
What happened:
1. You've moved Notification Message below Form Begin
2. Area between Form begin and Form End is being replicated on all pages, but areas above and below says intact.
3. That's how you've got 2 Notification messages. But this component cannot be deleted.
I can make Notification deletable and creatable, this may help.
Ah, ok. That makes sense.