I used Kobo Utilities to store current book positions on Calibre, get shelves, check and back up the database. After noticing that there was a new version 4.18.13737 (mine was v.15.12920), I then used Utilities to update.
Somehow my Clara also went through a factory reset, and I then reloaded the books from Calibre. Do I need to use Utilities to restore reading position and can I also reload the same books into original shelves? Or should I restore the previous database to reinstate the old environment?
PS Why the weird version number change?