The problem was when you have multiple 1098 entries, TurboTax was only calculating the first one. In our case that meant we payed over 2K more then we needed to, so we filed the amended return with the correction.
Amended return was received by IRS in August 2021, but hasn't been processed still. Have called dozens of times, but the line just says they are busy and to try again another day. I'm guessing we can apply the refund to 2021 (it's a bit more then we owe).
