Did you mean line 4b is higher than your distributions? Line 4a can be blank if it is the same amount as 4b. Have you filed 2022 yet? Yes I would delete the imported 1099R and enter it manually. You can amend your returns.
How to Amend this year
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...
How to Amend a prior year
https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...
