Andoid Back button cause Application Stop unexcpectedly..

Hello,

I build an android project and When I launch the application and press the back button on the device(after waiting for the full loading of my app), the application exit unexcpectedly...( Yes it must exit but not like that :) ) I've tracked the error with android studio and it's a segv.

I get this error when I enable the multithread rendering with unity 5.0.0f4 free edition.

I have also tried with an empty project by binding the back button with :

if (Input.GetKeyDown(KeyCode.Escape)) Application.Quit();

And I get the same error.

Someone have any idea ? Maybe it is a bug from my unity version...