Misalignment of 3D augmentation in Stereo mode

Good day, On our latest project, we had to augment a 3D model of a mechanical motor and align its animated parts on a real life printed version of it. The main goal was to show the process of disassembly of this motor by overlaying the virtual parts as close as possible to the real piece. To do this, we used our usual pipeline: we created a 22" x 22" marker on which the real life motor could sit right in the middle. Since the motor was positioned in the center of the marker, the alignment seemed quite on point from all angles when the scene was built as a single regular camera view. Once we switched to Stereo mode with the Digital Eyewear component, we noticed that the virtuel model had an unpleasant offset to the right of the marker, making all the animations running at the wrong place. The included screenshots show the problem clearly and the differences between the Mono and Stereo mode. We realized the source of the problem could come from the position of the camera on a phone, since most tests were run on a Galaxy S3, on which the rear camera is to the center left border of the phone, when held sideways. However, we did not figure how to fix this offset that is causing some major misalignment issues for our project. Some technical information: We used Vuforia 5-5-9 on Unity 5.3.4f1 32-bit on a Windows PC. The tests were run mostly on a Samsung Galaxy S3 with Android 4.4.2 and iPhone 4. We also created an empty project with only the latest Vuforia and the right target database to see if a simple cube could be properly aligned in Stereo mode, but it did not: the same problem was present after building on the Android device. In the Unity editor, the alignment remained perfect when seen from a basic webcam.