So this just happened to me and it was because of the way I had entered in my "outstanding mortgage principal" on one of our 1098 forms for 2020.
We did a refi and there was an outstanding mortgage principal listed in both of them on Line 2 on the 1098. When you do put an outstanding balance in both forms, then the program adds them together and if that number is greater than $750k, then it puts you in the category to "limit interest". To get that to go away, you need to go back to the deductions section and click on "edit" mortgage interest statement. Change the line 2 of the mortgage that you no longer owe on (like the one that you refinanced and paid off) to a 0 (zero) because you have refinanced out of that loan and no longer have an "outstanding mortgage principal". Once I changed one of mine to zero (the one that was paid off by the refinance) then it no longer popped up with that error at the end when I went to file. Happy I paid the little extra to get the real time answers with a CPA from the comfort of my home. I am very confident after filing that I fixed the error correctly. Hope that this answer will help those of you that had a similar scenario to mine!
