Sounds like there may be a communication issue.
Best AnswerI have the same problem, for multiple devices. The change clock button in the app doesn't work on my profile for my HR inspire not does it for my kids Ace 3 device. Synchronization works, but I cannot change our clock faces.
Also, I can change theme (my system settings is dark, but I prefer light for the Fitbit app), but it changes back to system settings every time I change profile within Fitbit Family.
Best Answer