QApplication fails to start on release mode when using Qt as a backend of a plugin (Windows)

I'm using Qt as a backend of a VST plugin to be used on audio hosts. I have built Qt 5.5.0 from source statically. What am I doing?

I have declared this two static variables:

static int argc=1;
static char **argv = new char*[argc];

On the plugin main I have the following code to initialize Qt:

if (!app)
{
    #ifdef Q_OS_WIN
    LPWSTR *argvv = CommandLineToArgvW(GetCommandLineW(), &argc);
    argv[0] = qstrdup(QString::fromStdWString(argvv[0]).toLocal8Bit().constData());
    #endif

    app = new QApplication(argc, argv);
}

Before ensuring that the same arguments were being provided to QApplication argc and argv, when building and running in debug mode I had an ASSERTION alert: Q_ASSERT(allArguments.size() == origArgc);

Then I have fixed the code to the version above and the assertion warning disappeared. Thats when I changed to release mode and tried again, but now, it crashes as soon as QApplication is initialized.

The only output I have is:

argc: 1 argv[0]: C:\ProgramData\Ableton\Live 9 
Standard\Program\Ableton Live 9 Standard.exe

First-chance exception at 0x148AC104 (drc.dll) in Ableton Live 9 
Standard.exe: 0xC0000005: Access violation reading location 0x00000000.