I see there is still problem.

I am using android version 6.0.1

Device : Samsung Galaxy J2 (2016)

1) I received the verify code.As soon as I put it, the apps automatically ask to take a photo and after taking the photo, the app automatically shut down.

2) Sometimes it shows code has been sent but no code received.

I am really interested to use the app.I want to create a active group as well.