I have the Garmin Fenix 6x Sapphire, and i track my weight through a Withings Scale, connected to MyFitnessPal, which again is connected to Garmin.
In the Garmin Connect app on my iPhone, the 1 day and 7 day data/graph is showing correctly, but the 4 weeks/12 months display makes no sense, wit some extreme values it seems. I have tried to see if there are some settings i can adjust but no luck. Anyone else have this experience, and possibly some solution?
I have attached screen shots of 7 days, 4 weeks and 12 months. 
