I'm on Windows10 desktop. I have been trying to create some new patterns and had added some brushes strokes as they were too pixelated when opened in Affinity Photo. But the brush strokes don't show up when exported them as png. I need the backgrounds to be transparent so jpg won't work. I tried rasterizing them prior to export but didn't work either.I thought maybe an update would help but the 1.8.2 won't open - I've redownloaded it but not go there. Is there a trick to it or do pngs not work with brush strokes. I don't remember this as a problem before. Thanks for any help.