I ran across an issue where I duplicate a plane and a point, and when I change the parent of the plane, it changes orientation. The orientation stays wrong in the viewer, even as you move/rotate parent layers.
Here are some written instructions to reproduce the problem, along with a video showing it.
Start with a new composite.
Add a point, change to 3D, change name to 'center'.
Add a point, change to 3D, change name to 'Point A, parent to 'Center'
Add a plane, change to 3D, change name to 'Plane A, parent to 'Point A'
Change view to 3, so you can see the top view.
Select 'Point A' and drag it down, towards the camera a little bit.
In 'Center' transformation, change it's Y orientation to 90, 'Point A' and 'Plane A' should spin around 'Center.
Select both 'Point A' and 'Plane A', right click and select Duplicate.
Rename the duplicate 'Point A' to 'Point B' and
rename the duplicate 'Plane A' to 'Plane B'.
Change 'Plane B' to be parented to 'Point B'.
Once you've done that, you should notice in the viewers that 'Plane B'
changes it Y orientation by 90 degrees.
If you move 'Center' or change it's orientation, both 'Plane A' and 'Plane B'
both move with 'Center', but are 90 degrees off from each other, which they should not be.
If you look at the orientation of 'Plane B', it's all zeros, just like 'Plane A'
So in the viewers it's changed orientation, but not in it's transform values.
If you go to 'Plane B' transform and start to move it's Y orientation, it will
first snap back to 0 in the viewer, matching 'Plane A', which is where it should have been.
The amount that orientation of 'Plane B' is off, will match the orientation