The actual address is pink?  If so, did you double check the the little box for a foreign address didn't accidentally get checked?

You've double checked the address is entered in the US address section, rather than the foreign address section?

Have you tried deleting the entire address and re-entering it again (in the US address section, and without the little foreign box checked)?

Is there a Foreign Earned Income Exclusion (Form 2555) in the return that might be triggering something weird?