Flipped Tracker axes when using Vive Trackers with Vive Wands

Using pucks with motion controller will cause the tracking pucks x and z axes to flip.

Sample project with pawn attached.

1. Acquire and Pair 2 Vive Trackers
2. Create a VR pawn with Camera and 4 MotionController Components.
3. Configure MotionController Components Motion Source to track Left, Right, Special_1 and Special_2
4. Enable 'Display Device Model' for controllers and assign the Axis_Guide mesh for the trackers.
5. Play in VR Preview

Result: When only pucks are on, their Z axis points up. When controllers are turned on, x and z axes are flipped.