http://https://www8.garmin.com/support/download_details.jsp?id=11665
13.23 Change Log Notes:
Fixed an issue where the device could crash during a cycling activity when paired to a cadence sensor.
Fixed an intermittent issue where the device could crash when fetching calendar information from the smartphone.
Please send all bug reports to [email][email protected][/email], and indicate which model of the fenix 5 series you have in the subject line.