Challenge

I'm having a similar issue. I've logged 18 miles of running activities in September however only 9 miles are counted toward the "September Rundown" challenge. "Activities > Running > 1y" view shows the right total of 18mi in September though. Not that I care that much, but blatant bug to be fixed.

Have you logged all your running with a Garmin watch? The summary you see for the month doesn't care how you logged your running, but the badge challenge does.

Yes, all of it with my only Garmin watch.

You could test to edit the activities and see if they are counted for the challenge.

Some people have been successful in leaving challenges and then joining them again.

That did it, thank you. Left the challenge and joined again.

looks like i have the same issue with walking, running and cycling .....

last two days nothing seems to increase on neither of the challenges (to which i joined in august)

and yes, leaving and joining the challenges again seems to resolve the issue 

I'm having same issue.  The only thing that fixes it is to leave the challenge and then rejoin it.  My activities towards other badges that aren't challenges don't appear to be being counted either as I should have earned one this week and didn't.  Not sure how to fix that.