I have a Vivoactive HR and the same thing is happening to me. I look on the watch and the steps are there, but on the Connect app the steps and floors are showing 0 or very low steps. I sync to the Connect App several times a day. I plugged my watch in and synced it to the Connect app online and the steps are showing 0 there as well. But they are still on the watch. I have never had this happen until the last month or so. First it started with HR data now its steps and floors too.