Can anyone give me a hint what am I doing wrong here. I used to be able to work with inpainting tool with no problems. Now it does not seem to do anything. My computer is MacBook Pro (Retina, 13-inch, Early 2015) with latest Sierra. Affinity Photo is 1.5.1.
Here you can see what I mean: https://youtu.be/J-U5fLWC5Lg
Thanks for your help
TimoK