02-01-2016 11:47
02-01-2016 11:47
02-02-2016 00:08
02-02-2016 00:08
It's probably not the answer you want but as a temporary solution you could not use the app and just let your One track the walk on its own. This way you'll get full credit for your walk (albeit at the loss of the map).
Perhaps your phone's GPS was not getting a good signal?