Related documents are not added to a generated 2253 Compliance Package binder in Vault.
The related documents are added to a custom Document Relationship.
The solution is to add the related documents to the Linked Document relationship instead of the custom Document Relationship. The Linked Document relationship is a Standard document relationship in Vault.
Once this is completed, the user should re-run the Bulk Action that generates the 2253 Compliance Package binder.
- Vault Help Documentation: Vault Help