Crash of emulation layer when sceneCamera is moved or rotated

Happens on build #201

1. Create 3D project
2. Change editor so you can see the scene camera

3. Select sceneCamera

4. Drag sceneCamera upwards

5. Rotate sceneCamera to point at the cube

Expected result:

• sceneCamera can be rotated and 2D view show change in the scene

Actual result:

• Emulation layer crashes and user cannot continue. There is not indication what is wrong in the QML