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I need to amend my 2023 return.  I corrected the error, and then in forms mode opened Form 1040-X.  The form showed my adjustments correctly, except that the 1040-X also gave me a $500 nonrefundable tax credit on line 7 that wasn't on the original return.  I have one dependent in "other" category, but that was processed on the original return.  Right clicking on the $500 cell brings up picks, but clicking on them doesn't do anything, so I can't see the data source.  Any help would be appreciated.