Youโre using the wrong terminology, which is vastly confusing my effort to help you. 110 and 111 are rows, not columns. Rows are horizontal (left-to-right), columns are vertical (top-to-bottom).
In light of this, is your spreadsheet missing rows or columns?
Assuming you actually mean rows, your problem is definitely because your key column is _RowNumber. You need a better key.
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