Good afternoon,
I have a 955 solar and regarding the heart rate zones I have detected 2 errors.
The first one is that although I set the zones in a personalized way, the watch automatically after each activity "reconfigures" them and puts them by %, so it deconfigures everything.
The second is that having the heart rate zones correctly configured, on the web (connect.garmin.com/modern/) when I create a workout and set my heart rate zones as a target, it does not show them correctly, that is, it does NOT show me the ones I have configured.
Anyway, let's see if Garmin sees this thread and fixes this bug in future updates.