Is anyone having an issue with the step challenge? I joined over the weekend, Christmas noob, and it's still showing my steps as 0. Only the top two people have their steps showing. Everyone else is showing 0. I've opted out and joined again but it hasn't worked.
I also have the same issue. I can see my steps in Daily Summary and at the Connections Weekly Dashboard, but in Challenges - 0, although it shows the Last Sync as Today.
I am having the same problem and was just searching for the answer. I'm in the 125 k steps challenge each week. This week it shows me as 10th place with 0 steps. I have over 70,000 for this week. Everyone else in the challenge is showing up with theirs. Initially it looked like it had placed me in an old challenge that had finished as it was showing the finish date was 8th Jan but that's changed now to the 6th. It says last sync is today.