The 2020 code JP must be entered into your *2019* amended tax return.
For the recharacterization and conversion see my answer to tax17- in this thread:
https://ttlc.intuit.com/community/retirement/discussion/how-do-i-file-a-roth-recharacterization-to-a...
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
