I have to re-lookup a bunch of dates because the date opened in Calibre Companion overrode the date I entered in Calibre and I didn't realize it until earlier today. So I've had to turn that sync off altogether as there is no way to set the sync to go only from Calibre to Calibre Companion. And if the info is different, the info in Calibre Companion will override the info in Calibre. (Doesn't matter which was updated the most recently). I will miss having the pretty green checkmark in list view to show that the book has been read, but I do not want to risk the data getting messed up again.
It's only about 60-70 books (as I opened a bunch to check the formatting) and then that date stayed in CC even though I had then unchecked the box (to use "today's date) and changed my dates in Calibre when I last synced. Glad I caught the issue now, but
ETA: okay it ended up being 73 books
