2017 Ford Fusion AC issues

I have a 2017 Ford Fusion, and the AC is being a pain. I tried to refill the freon and the connector didn't seem to connect fully to the low pressure port. But when it seemed "on" the can read it was full. So I just tried to run it and on the normal AC setting it seemed to blow pretty cool, but when I put it on Max AC, it blows hot air. I'm not sure if the regular AC is cool only because it was drawing air from outside, or if it actually was working and something is wrong with the Max AC setting. Any tips or suggestions are welcome. I am running out of ideas!

I also have a '17 Fusion, but have never had these issues. I have been trying, for several days, to direct you to another website, where you'll probably get faster info on your problem. They keep deleting my posts because they don't like links to competing sites. All I can say is to Google...