Hi there, I have seen other threads where I think this problem might have been solved but that was some time ago. One of my rides is not uploading from my Edge 520 into my Garmin Connect app as the fit file is corrupt. I have tried uploading it manually but no luck. Has anyone got a fix for this? Thank you
Got it. 
This will work for you - 2020-12-28-06-16-41-fixed.zip
Unzip the file then import into Garmin Connect using the import data page.
There was a start event but no stop event, which caused the upload error "An error occurred with your upload. Please try again." Repaired using Fit File Repair Tool.
Some tips to help minimize the occurrence of corrupt fit files:
