Get your taxes done using TurboTax

I still have same problem as outlined by these folks, I followed the steps outlined in 
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-enter-a-backdoor-roth-ira-convers... and I narrowed down the problem, 
In the screen where it asks "Tell Us How Much You Contributed" If I enter the total amount as 6000 and hit continue things work properly. But if I fill "Tell how much you contributed for 2021 between Jan 2022 to April 18 2022, if I enter it as 6000, then I owe taxes, which should not be the case since its back door. How do I resolve this error?

Note: I contributed $6000 for the year 2021 only on Feb 2022. Also the 1099-R which I got should be for the contribution which I did for 2020 Tax year on 2021 Feb. Please let me know how to resolve this issue