13.58 Change Log Notes
Fixed an issue where Heart Rate broadcast would stop working after 10 seconds, if returning to the watch face from the Sensors and accessories menu.
Fixed an issue where GPS related training options were accessible from certain indoor sports.
Fixed an issue where the device could crash when processing malformed activity files.
Fixed an issue where certain settings changes on device were not making it to Garmin Connect as expected.
Fixed an issue where the interval pace data field could be dashed out during a Pool Swim activity.
https://www8.garmin.com/support/download_details.jsp?id=11421