For those that are getting an app error when trying to track it, I had the same thing start happening. I did however find a workaround, it's weird, but it's worked twice for me when I got the error.
Workaround
- Under "Vehicles" click "View All Vehicles".
- Click the drop and then click the blue button "VEHICLE PROFILE".
- Lastly under "Track My BMW" click on "2018 M2 Coupe"
You should now see the tracker. Curious if it works for others also having this issue.