If tracks from your Apple Watch have not imported correctly, then it possible to find these tracks in the watchOS folder within the shared area of Ski Tracks, this can only be accessed via iTunes.
- Connect your phone to your computer
- Select your device
- Select File Sharing
- Select Ski Tracks then copy the watchOS folder to you computer
- Open the copied watchOS folder on your computer
- Compress the watchOS folder and email to email@example.com please make sure you tell us which date you would like to recover.