Retirement tax questions

I do not understand why there is a question for RMD if it is not required for 2020. I indicated that I took RMD for 2020 and then rolled it back to the account. Program indicated that the amount was not taxable. Yet on 1040 the RMD was taxed. I am a retired CPA so I knew something was wrong.  Most people would think that it was not taxable because the program indicated that it wasn't. I think a fix is necessary,