Running activities not importing to Garmin Connect

I have a new Vivoactive 6.

It is able to sync all my other activities (cycling, swimming, strength training, sleep, etc), but the two running activities I have completed won't sync.

For one I had created a "course" and followed it. For the second I used a PacePro plan with a course.

I was able to upload the file to https://www.fitfileviewer.com/ , "fix it" and upload manually to Garmin Connect on the web, but there is no map of my activity.

Any ideas?

0 seilogramp 1 month ago

Are you using Firefox or Safari or any non-Chromium browser to import activities? Currently, that is an issue as discussed here - Problems uploading .fit file

If that is the case, the workaround is to use Google Chrome or Microsoft Edge.

If you're already using Chrome or Edge and still have this issue: then you can try to repair the file using FIT File Viewer

If it still doesn't work, zip then attach the file to this thread. We can take a look to see if it is repairable.

Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.

0 CeeJayCee 1 month ago in reply to seilogramp

Thanks for your reply.

I'm using Chrome to import activities. And also the Garmin Connect iOS app.

I used FIT File Viewer as you described, it was able to repair the file but it is missing all the GPS trace data.

For one of the activities, the FIT file is here: https://www.dropbox.com/scl/fi/i78uyp2d1v7pvidk1c6dh/2025-09-16-08-05-03.fit?rlkey=rodozovqrhrv9gaqu152x74mn&st=jnysv2v1&dl=0

Why is the file being corrupted? This is a brand new device.

0 seilogramp 1 month ago in reply to CeeJayCee

CeeJayCee said:
Why is the file being corrupted?

Your device might be experiencing this issue - New bug in FIT files: empty File ID and no Record messages