"I am not sure why the 1098 information would disappear unless something was accidentally hit that deleted your information."
The original question was not about deletion of 1098, but deduction change. For example, if you select "yes" here, the "federal refund" might decrease.
It is related to the $750000 mortgage interest tax limit. When you select "No" to this question, turbotax will ignore the limit and use whatever interest number you entered so far; If you select "Yes" here, turbotax will apply the tax limit correctly.
So if it's the only 1098 or you merged manually, you should select "yes" here.
