Hi, I'm a relative new user of Affinity. I've been using Masks successfully for the last week or so. I use it after creating a Stack of 2 photos and then bring parts of the bottom photo through to the top photo. But tonight I've tried to do it again but when I'm brushing, the circle has a yellow tint in it and when the portion of the lower photo is exposed it also has a yellow tint. The lower image is quite yellow but the portion of that image that I'm trying to bring through is not yellow. What am I doing wrong?
