Amortization

I received a 1099-INT tax form with a statement indicating that there is unrealized cost basis information for a security subject to amortization as of 12/31/2024, showing an amount of -150.87.

Should this amount be manually entered in Box 12 of the 1099-INT form? When I enter it, the total interest does not change. However, when I enter 150.87 in Box 11, the total interest decreases.

Why does TurboTax ignore the amount in Box 12 but adjust the total interest when entered in Box 11?

What should I do?