Duplicating angled light objects funkiness

[Max McDougall]

Ok, So I use the straight truss tool to create a stick of truss, add some pipe to truss, select it all and make a symbol, choose symbol with 'Light Position obj Tool', and then place light symbols at my positions.

I go into 3D view, select my fixtures, 3D rotate at X 45 degrees, move lights in Z axis to line up with truss. All seems to be well, I move the truss and the lights follow, updating their focus positions etc. However, when I select everything and duplicate it a majority (but not all) lights go back to a flat elevation on the duplicated truss.

Is there a workaround to this? Am I doing something wrong? I have a bunch of 'pods' that I'm designing for an arena show and need to duplicate and mirror a lot of this stuff..

Thanks