I'm trying to use 'Full' sized featured images in my posts, but Upfront doesn't seem to like it. By checking the source, I can see that it is putting down a resized version of the image (image-name-660x1150-8552.jpg). I have even tried enforcing 'Natural Size' from the image settings, but that doesn't make a difference.
I have stopped WordPress from creating extra versions of my uploaded images from Settings->Media but it seems like Upfront is generating some of them as well which are being used. Is there any way to enforce Upfront to use the 'Full' size of the image? Please advice.