Here's one page I've managed to get authors set up on properly, no errors:
And here is one on another that throws an error with a different author:
Error: Google Profile does not link to article site
As far as I can tell, they are both identical in the way they are set up! I am really struggling to see the differences here. Can anyone tell me what's going on? Ashley's Google profile has a link set up to his profile page and we did check the box saying "This is about me".