Something seems up with entering body weight in the Garmin Connect Mobile app since yesterday (11th Aug 2017) - both on my desktop Windows 10 PC and on my mobile Windows 10 phones. I enter my weight every day and it has been fine for months. Then yesterday and today after I enter a weight (e.g. 163.8 pounds) when I then look at my weight entries it displays the new weight as 1000 times too big (e.g. 163800 pounds) ! Previous weights from before yesterday are still displaying correctly.
I've checked on the website version of Garmin Connect and that still seems to be working ok, so not sure what's happened to the app versions. Hopefully just a temporary bug?