Titles disappearing

What I did:typed a title in a new blank note. Clicked in the body of the note to add text. Clicked back into the title (at the end of the title)

What happened:the title disappeared, replaced with the untitled note grey text, as if I had never entered anything

What I expected:the title text I entered to remain

Things that might be helpful to know (Agenda version, OS and model, etc):
Newest agenda.version, iOS current (not beta) iPhone 7+

Did this just happen once, or every time?

If you notice it again, see if you can see a pattern of how it happened, and let us know, so we can try to reproduce it.