loan deduction is not working correctly

I took a loan for 450k in 2018. This was transferred by the original lender in 2019 to another company (company 1 for which I have 1098). Then I refinanced with company 2 who held my loan for 3 months and then transferred it to a 3rd company who had the loan for 3 more months in 2019.

when I enter the 1098 information for loan deduction -the average loan balance is going over 450k and reducing my deductions instead of sticking with my original 450k (seems like turbo tax is calculating incorrectly) - need help.