FItbit registering duplicate activities in Strava

[JinaNoeth]

Why do I have duplicate though slightly different, activities registering in Strava? I have tried to contact Strava support and they say it's a Fitbit problem.

[DaveNic001]

I have the same. I’ve always used Strava on my phone to measure my running. My sense 2 is showing the same route on Strava but a shorter distance and slower time. It’s frustrating because I don’t know which is the more accurate reading. From reading other comments on other Fitbit devices, this seems to be a common problem.