On Qt 5.10 .psd files with 8-bit RGB with Alpha reads as QImage QImage::Format_RGB32, i.e. without transparency. I don't know why it works on previous Qt versions
Edit: By checking the code, I believe that this fix should be the correct one. I can't verify it though since I don't have an Qt environment on my laptop.
On Qt 5.10 .psd files with 8-bit RGB with Alpha reads as QImage QImage::Format_RGB32, i.e. without transparency. I don't know why it works on previous Qt versions