Michael R. following up on this. When I went through the whole process (Sitemap > Wireframes > Style Guide > Design) and I generated/customized the style guide colors and schemes, and then went to design and added a new page and had AI generate it, everything with schemes stayed locked in - but the new page that was generated didn't have any schemes applied.
To me, this is how I would probably expect things to go at this stage to be honest. Were you experiencing something else entirely or?