The setup was working as expected and my weight is synced and I can see it in Garmin Connect. But the settings for body compositions and the date format (12 / 24) is not synced at all. This way I do not record the body composition metrics. The scale does not show me the sign "?" between feets when I stand on it. Anyway the date format is not synced as well.
Any advice? I already resetted the device.