Solved a mystery today. After creating beautiful JPG artwork in #Affinityphoto and #AffinityDesigner, I found that the images wouldn't upload to #Walgreen's for poster printing.

There was a post in a support forum about this, but #Affinity made all forums "Read Only" this month, and I couldn't post the fix.

(#Affinity *can* output JPGs in CYMK without you noticing, which is the problem. Make sure JPGs are specifically exported as RGB, or their compatibility can be compromised.)