Approval workflow of Spend Authorization

When submitting a Spend Authorization, the approval workflow is going to the employees Manager, which is correct. That Manager is 'Reassigning' the SA to a user outside of the normal approval workflow. Because they have reassigned, that Spend Authorization should now follow the approval workflow of the reassigned employee.

This is working as designed in our development environment. In production, once reassigned, it is continuing to follow the 'Submitters' original approval workflow.

We have been through multiple refreshes as well as multiple quarterly updates. I've also compared all setup in both instances.