Column A is what you reported originally - but you say yours is not accurate. Perhaps you made some changes before starting the amended return. You may need to delete the amended return and any changes. You need column A to match your original return.
Column B is the change. I wonder if you entered the loss more than once. This needs to be the correct amount of change. Your Sch D and 8949 are part of your amended return and those forms need to be accurate.
You can try revert to original or delete amend and all the changes made. Once your return exactly matches what you filed, select to amend.
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