Fwiw after four warranty replacements for exactly this issue it’s still unsolved. I’ve got another lock in a separate door that works just fine, but this calibration loss is a real frustrating problem.
I am experiencing the same thing. I have had to calibrate mine almost daily and today I have had to do it twice in the last 3 hours. It has only been since it had gotten hot outside in the last month or so that this has been happening.
Something is wrong for this to be happening this much.