How do I fix the software bug so that I do not have to enter an override, and program will allow e filing?
Since you understand the rules and limitations, I suggest you use the program to override the computer with the correct entry, rather than doing an actual override in Forms mode. Remember the IRS only gets Sch A with the final number listed. It doesn't get worksheets. The IRS gets the forms from the mortgage company. They are looking for you to claim based on what they receive.
You can use Table 1 Worksheet to Figure Your Deductible Mortgage Interest. You have two ways to enter your mortgage information.