670g, Guardian sensor, manual mode
Last evening, 7:30 PM, did a calibration
Last night, 10 PM, did a calibration prior to going to sleep, afterwards the sensor status said the next required one was at 10AM this morning
This morning, 3AM, calibration required, looked at sensor status, it said previous calibration was 7:30 PM; it had completely gotten rid of the calibration that I did at 10 PM, turned sensor off because I was trying to sleep!
This morning, 7:20 AM, turned sensor back on again, calibration required, did a calibration.
Why did it delete the 10 PM calibration and make me do a calibration at some random time in the middle of the night? This has happened a number of times before, and it’s extremely irritating.