I have noticed that the heart rate graph on my Mobile iOS app only shows from 12M to 11PM now. 11PM to midnight is not displayed. All data does appear when I log in to the Garmin Connect web site.
The graph on the mobile app used to show from 12AM to midnight, but looks like this changed in conjunction with Daylight Savings Time. Looking at daily heart rate up to and including March 10 2018 shows the full 24 hours, from March 11 onwards the graph only shows 23 hours.
Anyone else seeing this?