Initial post has been updated with the release notes of the new Beta 5.5.5.
This release includes a critical bugfix for the enhanced motor control, which caused that the Smart Lock did not disengage itself properly after performing an unlatch action. This resulted in the lock being stuck in the mechanical edge, leading to really bad user experience and broken adapters on the Smart Lock Ultra.
We highly appreciate the numerous feedback provided from all out Beta testers and are eager to improve our products to achieve the best in class user experience. Please install this newest version and provide feedback in this channel in order to further shape the experience.
Thanks 