STEPS TO REPRODUCE
1. Launch iClone 6
2. Navigate to Content Manager > Set > Props > Light Tool, apply Lantern with pole.iProp
3. Go to Menu > Edit > Project Setting > Global Physics Settings > Simulation, select "PhysX Engine"
4. Then go to Modify > Physics
5. Click "Constraint Manager" on Toolbar, double-click "Point_to_Point"
6. Navigate to Modify > Constraint, set "Target" to "Lantern with pole"
7. Go to "Constraint Manager", click "Parent"
8. Press and hold "Ctrl", then drag to copy the prop
9. Check Constraint Target of the copied prop

ACTUAL RESULT
The duplicate object is constrained to world axis instead

EXPECTED RESULT
It can set Constraint Target to the copied prop