Since there is no RMD required for 2020 then after you enter the 1099R say it was NOT an RMD and then that you rolled it over (even if back into the same account). It will show as income on the Turbo Tax Summary or Review so check the actual 1040. The amount should be on line 4a or 5a and say ROLLOVER by the taxable lines 4b or 5b.
Was any withholding taken out? If it was then did you replace the withholding with your own money? Otherwise the withholding will be a taxable distribution itself. You will still get credit for any withholding taken out in box 4.
