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https://nishantrana.me/2019/05/08/error-the-derived-column-failed-because-truncation-occurred-and-the-truncation-row-disposition-on-derived-column-outputsderived-column-output-columnsfilepath-specifies-failure-on-truncat/
Error: The "Derived Column" failed because truncation occurred, and the truncation row disposition on "Derived Column.Outputs[Derived Column Output].Columns[FilePath]" specifies failure on truncation. A truncation error occurred on the specified object of the specified component