I was typing in a Dex note and accidentally clicked out of the window. My whole page of notes from a customer call was lost.

Notes should automatically be saved against the contract as you're typing to avoid this.

Before submitting a note in the webapp, save it so it's not lost when you navigate away before submission

I keep notes in the "Description" field of contacts and they won't autosave if I forget to click out of the "Description" field (which is a problem if the app or computer automatically shuts down)