Waiting Room > Host Key

Hello - I have a recurring meeting that I'm trying to change from a waiting room (where the Host admits participants) to allowing participants to join before the host and reclaim host using the Zoom Host Key. After making some changes under Account Management>Account Settings, I can create a new meeting that has this functionality. However, after disabling waiting room in my recurring meeting, it still requires the host to signin to start the meeting - it doesn't allow participants to join before the host. I can't seem to figure out what I'm doing wrong. Is this change to a recurring meeting possible? THANK YOU!