So performing Range Doppler Terrain Correction before Coregistration has worked for the whole scene!
I am still concerned about processing in this order however. Maybe @mengdahl can elaborate on:
@css thanks for the link. I found page 82 interesting.
@mengdahl indeed. I have no issues when just using ‘un-shifted’ scenes, only when I add slice-assembled scenes into coregistration do I see issues. Maybe someone can try reproduce to check I’m not doing something stupid?