Carraca18

Hi Lee D. I've just started doing post production on my photos also using Affinity Photos as an extension to Photos on my iMac. I edit RAW files, and then use the extension "Edit in Affinity Photo" I was searching the forum for information about the message "the image exceeds 16mb limit..........", I get that message every time I've edited a photo, and save the photo back into Photos. Am I suppose to get that message every time or am I doing something wrong? What does the message mean? Thanks