Details: ti.background is not sent if you background an app after you send the custom app events (NavEvent, FeatureEvent, or GeoEvent).
Note: I was not able to reproduce this issue on Android.
Steps to reproduce:
1. Send custom events such as feature or nav events
2. Immediately background the application
3. Wait a minute or two for the analytic data to send
4. Check the analytic payloads
Actual: ti.background, app.nav, app.feature, and ti.geo are not sent.
Expected: ti.background, app.nav, app.feature, and ti.geo should be sent.