Setting alerts for myself to receive when others approve invoices I have routed to them

I am able to receive an email alert right away when I approve my own invoice. (I tried it on myself ) However, when I route an invoice to another reviewer and request an alert, I never receive it. I have contacted SAGE Paperless Help and then was escalated.. but no answers were found. I was told by the person who I ended up with to contact SAGE Paperless Help and that is how I got to the rep helping me :/ .. Any suggestions? It would be great to use this feature.