It is not compulsory to enter the 1099-Q. In your case, you were able to get the correct figures with your overrides and you can use those figures to file your 2020 tax return. Just keep the 1099-Q and the financial records that you used to prepare your return. If your overrides are preventing you from efiling, you can completely remove the 1099-Q entry and add you own figures to get the correct amount of taxes that you owe.
There is actually NO reason to enter the 1099 Q into TurboTax unless 1- you don't know if you have taxable income and you need help from the program to figure it out or 2 - you have taxable income to report. (the form itself even tells you this in the second sentence of instructions for recipient).
