Contacts are sorted by FIRST Name? This is unheard of and should be fixed!

On the RC App, contacts are sorted by FIRST name. There is no way to change sort order. This is nuts and has to be an error? I've called about this a few times and do not get very far. Can this be updated immediately as a critical fix and not wait for a standard build and quarterly update? To be clear, contacts should be sorted by LAST Name: Jane Doe should be listed in the D's and not the Js.