I have the same problem even after reading and following instructions under the more info box. This is an over simplification but it mentions you must enter the largest tax credit country/income category first and then proceed through the whole interview without entering other countries - then go back in and enter other countries. Unfortunately, the only way to revisit the field to make another entry is to say yes to revisit which then removes your first entry. I think this is a software glitch that requires a software correction by intuit. If someone has a workaround, please let me know!!!
