Right now the game provides the history in an inverse order (future to past) of what addons actually try to use (past to future), so before the library passes any events to addons, it will attempt to load the full time range since you last played the game. During this time, it will keep them in a temporary "unlinked" state and only when it encounters the last stored event, it will save them and start sending events to listening addons. If you quit the game before that happens, all progress will be lost and it will have to start over from the beginning the next time you log in.
