Android: Debugger does not stop at cpp breakpoint

Steps to reproduce:

• have Android sdk/ndk/Qt for Android configured
• create simple Qt Widget Application from template
• set a breakpoint
• build and debug the application on the simulator or on device
  • build & run seems fine, but I'm not able to stop at a breakpoint

Note: Breakpoints seem to be not resolved (if looking at the Breakpoints widget)

Note: Breakpoints inside Qml/JS code are hit [checked with Qt Quick Application, mixed debugging bp in cpp file and bp inside qml file; the latter one was hit]

Additional note: tried to interrupt the app as stopping at bp did not work, but interrupting seems to fail as well (timed out, I tried with 'give gdb more time' but nothing happened afterwards.. not even a second timeout - had to abort this)