UPDATE: This issue was resolved in version 2.0.2.
Some of you have experienced various issues involving their activity type within the Garmin Connect Mobile app, causing incorrect graph data to appear or no graph data to appear whatsoever. We were able to determine that the issue relates to how the application interprets the "Activity Type" setting for the activity within the Garmin Connect website.
An optional and temporary work-around that allows you to view the correct data on the Garmin Connect Mobile app is to change the "Activity Type" setting within an activity to a main category (i.e. Running, Cycling, Hiking, Swimming, etc) instead of a subcategory (i.e. Street Running, Lap Swimming, etc) from within the Garmin Connect Mobile app. You can do this by following the steps below:
1. Open the Garmin Connect Mobile app.
2. Select an activity.
3. Tap on the 'Options' button in the upper-right corner (three dots).
4. Tap on 'Activity Type'.
5. Choose the appropriate Activity (Running, Cycling, Walking, etc)
6. Tap on 'Save'.
We are currently working on correcting this issue with a future update release. We apologize for any inconvenience.