Nozu: Yes, in the note where I "lost" the most data I had many bulletpoints. In the one where I "lost" just a little data I don't think I had any bullet points. But all the data that disappeared from that note had been copy-pasted from Evince, and it might have started with a "tab" (whatever the indentation you get when you press tab in a text editor is called)

conny: Thank you very much for following the forums and coming here to say what you said. I appreciate that very much! I'm afraid I don't know how it happened, so I can't help with reproduction, but I'll add what info I have to the bug.