I would delete the imported 1099-R and enter it manually. Since we can't see your return in this forum, that would be my first suggestion to resolve your issue.
Here's How to Enter a Back-Door Roth Conversion. You should have a Form 8606 to reflect your correct IRA basis as of 12/31/2023 and non-deductible contributions for 2024, and new basis as of 12/31/2024.
@JimmyMJr
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"