Automation fail, and sheet repopulates old data

I am trying to move a line from one sheet to another. I create the automation, run it and test it and it works fine. I submit a request, click acknowledge, and it moves it to the desired sheet.  Then I get an email that says the automation is broken and about 50 lines auto populates old data back onto the sheet I am transferring from. 

I have removed the automation completely, and when I move a job to the other sheet the old data returns.

Please advise

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