Account and dopdown menu bugged

My Friends Account has a problem. If he comes online we we only can see him in the Battle net online, but if he starts Hearthstone, he does not appear. I canˋt even see him in my friend list.

-Its not the Offline status.
-log out/login
-reinstall the app
-cash cleared
-different device (pc and mobile)

This needs to be fixed by a technical supporter.

Screen shots available and account details also available.

Seams like nobody is helping here…