1099R confusion | Backdoor Roth | forgot to file form 8606

For 2022 tax year, I made a $6,000 traditional IRA contribution and did the Roth conversion in February 2023. I also made the $6500 contribution for 2023, and did roth conversion in same year.

 

My 1099R reads a total of $12,500. After filing this info on turbotax, I see that I have an IRA distribution of $6000 (which was the contribution i made for 2022). 

 

Seems like the issue is that i didnt fill out a form 8606 last year.. Any suggestions on how to get this resolved