Activities cannot sync to Garmin Connect

I have completed an activity with my Garmin vivomove HR, the activity was recorded and is saved on the device.
However, the activity will not send to the mobile or desktop app after it shows the sync has been completed. 

I think this is the file of the recording as I started the activity as "Walking".
Please could you have a look and see if there are any issues with this file causing it not to sync with the apps.

I did try uploading it manually to the Garmin Connect web but it also failed there.

Thanks 6WALKING.FIT.zip