Arthur Crown

Yes, me too. But the same issue occurred before and after factory reset. I suppose it's possible I involuntarily twitched while mouse was in vicinity of protect alpha both before and after reset. I'm going to have to watch myself, just in case!

Doh! Thanks very much, Ray. I don't know why I didn't see that. Not so much schoolboy error as old age, I guess. And thanks, Garry. Interesting technique - and one to remember not just for brightness, as you say.

Still a novice despite years of using Affinity photo. I am trying to adjust brightness of one area of image. I set the appropriate brightness. I press command-I to invert. I select paint brush, opacity 100%, flow 100%, hardness 0%. I select white to paint over adjustment layer hoping to reveal brightness desired, which has previously worked fine for me. Now, nothing happens. It has always worked fine before. Not this week. Tried a factory reset in case I had accidentally hit something. What I would say, comparing previously successful photo edits is that when I hit command-I the adjustment layer icon now goes completely black, whereas on previous photos it seems to have some white. I imagine I have just made a schoolboy error but... help!

Thanks for that. Much obliged!

I right click the image in Photos and choose "Edit with ..." in this case Affinity Photo.

Obviously I have done something wrong but I have no idea what. I choose Edit with Affinity Photo. I edit the Photo. It no longer saves back to Photos. The version in Photos remains unedited. It all used to work perfectly. iMac running macOS 10.14.6 and Affinity Photo 1.7.2.