When I try to open up a PSD, the around 70 layers becomes 4. I know they can be opened by pixelmator, as I coloured them on the app! It's just that on the mac they get flattened. (I've also opened these exact files on GIMP, and all the layers are still there, so the issue is definitely not with the files).
Is this because I'm on a trial? It says I should get full use though.