gieffe

Thanks @MEB, I tried what you suggested and in fact the behaviour is different between the two and it is what I was expecting The visualisation of the marching ants mislead me. @NotMyFault I don't think we need to continue further with the file and detailed steps.

Sure, I’ll post a file and details requested ASAP. Thanks

Thanks for the response. I'm aware of the difference between smooth and feather (I'm relatively new to Affinity Photo, but I've used Photoshop for many years). However, I do think this is a bug because moving the feather slider (from "Select" -> "Feather...") does smooth the edge curvature instead of softening the transition between selection and non-selection. This doesn't happen from within Refine edges (regardless of the other magic things that happen behind). Could you try replicate the steps I described in the first post?

In the first picture I clicked on "Select" -> "Feather..." but it seems the selection is instead smoothed. If I try "Select" -> "Smooth..." I obtain the same result. On the other hand, if I go into "Refine", changing the "Feather" slides has the effect that I was looking for (see second picture). Is this something intended to work this way and I'm doing something wrong or is it a bug? I'm on macOS 11.4 and I'm using Affinity Photo 1.10.0 Thank you, Giacomo