Email notifications for approvers not sent on merge request creation, only edit

I am trying to set up a merge request workflow for my company. People submitting merge requests can add approves as needed upon merge request creation and that task correctly shows up in the approvers’ TODO list. The issue is that no email notification is being sent out. Unless, they are edited in as an approver after the initial creation. This does not seem like expected behavior. Am I missing something?

Notes:
*There are no required approvers
*Relevant users have notifications set to “participate.”