When I first started computing 30 years ago, I was taught to keep the operating system and programs on one partition, and data on another partition (or drive). The reason was that one backs up the system only occasionally, while data should be backed up on a regular basis. Furthermore, data backups are saved for much longer, since you never know when you might need that old letter. There's no need to keep old system backups, once the new setup is confirmed to be working well. I've been doing that ever since, and I now see the wisdom.
I was wanting to consolidate my Notes files with my verse-by-verse comments on the Bible that I've been creating over the years, into one Note. So I went to the Documents tab in Logos, found my Notes file titled "Pentateuch" which contains all my notes from Genesis to Deuteronomy, and found it was completely empty.
Then I went to my "Joshua to Esther" Notes, and found that everything before 2 Samuel 19:9 has vanished.
Both of these Notes have "April 28" as the "Date" in Logos -- presumably that means when last edited. It doesn't say what year that was, so I presume it's this year.
That represents years of study and writing. Gone. Just like that.
How could this even happen? I learned from the Forum that one cannot simply copy and paste multiple notes; they must be transferred one at a time. I expect they have to be deleted one at a time also -- or else delete the entire Notes file, which would mean nothing would remain. Not even in my most confused delirium would I have gone through and deleted hundreds of notes!
It really does drive home the point that various people have been making about cloud computing in general: Don't trust the cloud!
Lesson learned, but a bit late.