## Environement
- iOS 13.3, 13.4
- Devise iPhone8, iPhone11 Pro
## About my app
- My app use Call Directory Extension
- Data Flow
Fetch data from server -> Save data to Realm -> Share data to App groups -> Load data to Call Directory Extension
## Explanation
Case 1
When I install my app via testFlight, I turned Settings->Phone->Call blocking & identification enable. loading does not stop.
Case 2
After I turned Settings->Phone->Call blocking & identification disable, I turned it enable. loading does not stop.
※When I turned Call blocking & identification enable, I killed my app.
※In either case, if I delete app and reinstall it, the swith of Settings->Phone->Call blocking & identification is enabled.
I dont know whether this is os bug or application bug .
Please share What should I do.