Are you supposed to be able to claim objective regions from nations you are at war with through the claimed regions section of the diplomacy screen?
I am playing Italy in a GC v1.03d (playing with extended claims). One of my objective regions is Albania (Tirana) which is currently controlled by the Ottomans. I have declared war and captured Tirana but when I check the claimed regions in the diplomacy screen Albania is not displayed. I would have thought objective regions were legimate regions to claim in a peace deal?
Edit: I've just noticed this from the v1.02 change log
Objectives regions are always at least in your claim list (can be national too, which is the grade above).
This does not appear to be the case in my game unless something else changed in v1.03