HDL error for person number updated employees

Summary:

After person number updation we tried to update employee manager and job using HDL showing error

You must provide a valid reference to the parent record. Ensure that the parent record is supplied in the same file, or has already been created.

we used source system id Old person number also but same error

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You must provide a valid reference to the parent record. Ensure that the parent record is supplied in the same file, or has already been created.