Depth Buffer / Normal Buffer shifted from iPad Camera center



I’m facing a problem regarding the depth / normals buffers I get from the Structure SDK.
When trying to visualize them on my iPad (I’m using Unity3D and building an app), it looks like the depth buffer is shifted from the image of the iPad’s camera (see screenshot below).
I used the Structure Calibration app correctly.
Why is the buffer shifted horizontally compared to the iPad camera feed ?
Any idea on how to fix this problem ?

Thank you