First time I've experienced the following issue:
Yesterday, I took copious notes during a critical meeting. Today, the note was there, with the title still there but the body of the note was empty. It simply had the default text: "Drag files here or just start typing". I was surprised - I'd written enough and for a long enough time for plenty of syncing to occur, I'd never before seen a body of a note go missing.
Then, I started a follow-up note. Similar title, typing away. After 10 minutes, and switching from other notes, the 2nd note too was now blank. Argh.
Tried again with