3608141 - Workflow Not Triggering for Manage Supplier Down Payment Requests App

When creating a supplier down payment using the "Manage Supplier Down Payment Requests" app, only the "Post" button is displayed. 
The "Save" or "Submit for Approval" options do not appear.

SAP S/4HANA Cloud Public Edition

Currently, only down payment requests created from the "Verify Supplier Down Payment Requests" app can trigger the workflow.
The "Manage Supplier Down Payment Requests" app is used for the regular creation of supplier down payment requests and does not trigger the workflow.

Approval Workflows for Supplier Down Payment Requests
Verify Supplier Down Payment Requests

SAP S/4HANA Public Cloud, Workflow, Supplier Down Payment Requests, Manage Supplier Down Payment Requests, Verify Supplier Down Payment Requests, Submit for Approval , KBA , FI-FIO-AP-TRA-2CL , Transaction Apps: Public Cloud , Problem