Having Trouble saving a PDF

I’m trying to export a final file of a magazine I made for a client and for some reason a warning pops up (see attached) and if I ignore it, when I open the PDF file it shows the old version of the file. (Missing all the changes I made) I also attached a screenshot of my color settings to make sure its the right settings for print


print is usually cmyk not rgb. can that be the problem?

Thanks. I figured it out. My problem didn’t have to do with the colors. There was just something wrong with the folder I was saving it into. For some reason it was corrupt.