marq2 sim works bad

This is now fixed. Download the updated marq2 device from the SDK Manager to get the fix.

Thanks! 

should be

"location": {
            "height": 390,
            "width": 390,
            "x": 139,
            "y": 253
        },

The Aviator is fine, but the default MARQ2 devices have an issue

Yes, this should be fixed asap, as this is very annoying to develop for those devices.