Remove Person Information (candidate) - erroring

Summary:

We have Deleted candidates via HDL in ORC and now trying to remove their records using Remove Person Information task. But it is erroring for at least 50% of records with the following error

The {CHILD_VO} object {CHILD_ATTRIBUTE} attribute value is {CHILD_VALUE} and doesn't match the parent {PARENT_VO} object expected value

Content (please ensure you mask any confidential information):

Has anyone had similar an error and resolved this? We have tried rebuilding the template to remove Candidate Preferred Organization object as saw this was causing errors for others but error is still occurring

Version (include the version you are using, if applicable):