I am unable to duplicate the error based on what the entries should be and we cannot see your return in this forum. However, one item to check that you didn't mention is the distribution code in box 7. It should be a code 4.
You might also delete the form 1099R completely using the steps below for online versions and re-enter the form information. If the error persists you might repost with your step-by-step for the 1099R questions and someone may be able to duplicate your situation.
1. Select "Tax Tools" in the left hand menu
2. Select "Tools"
3. Select "Delete a Form"
4. Find the 1099-R
5. "Delete"
6. "Confirm Deletion"
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