Illinois State Board asked me to retake the PE exam because of both my foreign education and lack of experience at the time when I first passed the PE exam out of state.
Illinois is a state that if your Bachelor degree is from a foreign school, then you must make up the education deficiency to be ABET equivalent (no matter if you have advanced degrees in U.S. or not) and additionally you need 8 years experience before you can take the PE exam. Otherwise they won't recognize your passing PE exam from out of state. That's why I ended up retaking the PE exam and making me one of the few passing the PE exam twice in order to get registered in Illinois. Anyway, I am so glad that finally it is over.
Good luck to all and especially those with foreign education.