The newest Known release had a series of database upgrade SQL files, and these apparently had syntax errors! I was able to fix these and use them to “repair” my database. I finally got my entries recovered!
…export/import failed, but that’s a new problem I can tackle ;]
Going to make a PR, but also had my confidence shaken a little bit… wanted this to be a hands off blog, but maybe I should use something a bit more “known” :P