You probably need to adjust the Z axis positions of your objects.
Even though CTA produces a 2D results, the stage actually has three dimensions.
Objects with large differences in the Z direction will show a separation if you are not dead center to the objects with the camera.
The presentation video should be 1 point behind the screen and the screen 1 point behind the character.
Use the object transform button to see and adjust the Z position of your objects.
Make sure you do this at the first frame.
Jeff
Get my Plugin Manager and TaskNotes plugins for iClone.
Check out EZColors and Other products for CTA/CA. EZColors: the easy way to change Render Styled (RS) colors!
See my CTA Tutorials on the YouTube channel CTAStepByStep