Hello,
I use "affinity photo" version 1.6.0.89 under windows 7 SP1 64 bits. I try to use undo brush tool. I start from pixel layer, I select the tool and I put the parameters opacity 100% and pixels width. When I click on an area no color cloud is displayed. The undo function does not work. I tried the last beta release 1.6.0.90 but I have the same result.
Thanks for your help
Philippe