Thank you for the prompt response! It is really helpful.
Regarding 2, I started backdoor in 2022 and I made a lot of mistakes: I have some leftover money in the traditional IRA by the end of year and my basis is also non-zero. So my line 5 is non-zero. That is the reason why I expected to see the value changes after I updated line 4.
Anyway I have to amend my 2024 tax return too. Really appreciate all the detailed explanations and help 🙂
