I punched in the your numbers in the desktop version and did it for both a joint return and a single return.
In both cases it worked correctly and provided the correction exclusions. ( I entered a $750,000 gain to see if only part of the gain was taxable and in both cases that is exactly what occurred).
One thing I did notice, though. That question about living in the home for 24 of the last 60 months... At least in the desktop version, the "NO" response is to the right; normally in TT the "usual" response is the the right button and the 'unusual' response is the left button. In this case it was designed the other way around. Any chance you hit the "no" button when you meant to hit the 'yes' button?
Can you look again at which button you hit slowly and carefully? can anyone else look over your shoulder and review?
The other odd thing is no one else is 'complaining' on these boards about a similar issue with this functionality.
let us know what you find out!
