Hi-I don't know if this is a bug, but it seems to be a new phenomenon with the 1.9 releases. I'm using Affinity Photo to do paintovers and critique of the work of a pen and ink class. As such, I'm recording the sessions where I open the student work, talk about it, and draw in corrections. Then I close the files and open a new batch. After going through about three students, and about a dozen images, Photo starts to get laggy. Brushes taking full seconds to put down what I've drawn, multi-second lags between Alt-Selecting a color and being able to draw with it, etc. Often, after that, when I try to open a JPG or PNG file, I get a "you do not have permission to open that file" error. This can all be fixed by quitting Photo and restarting. I'm using 1.9.2 on Mac 11.2.3, so latest of both program and OS. It seems like a memory leak to me, but whether in the program or the OS I have no idea.
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