We had one person that wasn't cleared until about 3 days before, and I've seen reports from some people not getting updated until the night before. No way not to be worried, but usually just them being behind. If everything has the green checkmark except your Guest Information section, there's a chance that it's your photos that are slowing things down. Unfortunately, they don't seem to alert you if they don't like them for whatever reason. Worst case scenario is they'll have to take a new picture your picture of you or your passport at the port. It won't keep you from boarding.