I unlock the layer, go to the sky to copy the sky across a roofline. I hold OPT and take a sample. I move across to the skyline and attempt to apply and the skyline isnt covered. Opacity 100%, Flow 100% Fill 100%. Blending mode to NORMAL.
I cannot for the life of me think why this is suddently not working, 20 mins ago on a previous image it was working fine. Have I accidently hit a settings change?? This is infuriating af.