My Steps aren't syncing correctly in challenges

[CarolK63]

All of the sudden I've noticed that my steps in a workweek challenge that I'm in is not what it shows on my fitbit or the dashboard on my phone.  Right now I have 8598 steps but in the challenge it's only showing 8172.  I don't think this has ever happened before.  What can I do to correct this?

[Baltoscott]

If the person who started the challenge is in a different timezone than you, your challenge steps (starting at midnight in the other timezone) and your daily steps (starting at midnight in your timezone) often won't match. 

Because you probably usually don't do that many steps from midnight until you wake up, or that many after 10 pm, you may not have noticed much difference before.

[Hello22]

I am having the same problem but we are all in the same time zone. What should I do ?