When I open the inspector from Safari Web Inspector or Safari (latest version of today) I can see the device and the app on the developper menu. When I click on the app to be debugged it opens and closes as soon as it was opened.
After the device is in the status "Connecting"
Then I enable and disable "Connect via network" for my device to be re-connected and same as before it opens and closes.
I see that it is a very common problem.
When Apple will allow developers to debug the code and note the debugger ?