One of the most prevalent problems with the app seems to be consistently keeping the inputted information. That said, I think that is what's causing the blue lane/green lane switching back and forth. I know with us it lost what country we are from, so it bumped us to the blue lane. Ugh!
Maybe it works better when on the ship... who knows. I will only put the required info in and not the suggested, so as to not complicate errors.