I am having the same problem as others (physical key-locking not registering as a locked door). Resyncing the Sesame lock to the key doesn’t help because of jiggle issues on the knob side. Jerry-rigging is inconsistent.
May I propose a software fix? The regular sync, like you have now. Then an advanced toggle, which opens up a new menu view where you can individually train Sesame to learn a key turn’s “locked” and “unlocked” distances. With a note that says “Use this if a key turn is not registering as a locked door” or something.