Unable to change call / onlineMeeting subject

Hi,

We're currently able to create a group call by doing the following:
Create an Online Meeting
Post to app/calls with the meeting info,

When doing this, we're not able to set the meeting subject shown below:

When creating the original onlinemeeting, I'm passing through a subject body:

{
          "meetingType": "meetNow",
          "participants": {
              "organizer": {
              "identity": {
                  "user": {
                  "id": "ab"
                  }
              }
              }
          },
          "subject": "subject Update" 
      }

Do you know if it's possible to update this, or if I should be updating it elsewhere?

Thanks

Start with the Online Meeting creation payload and the subsequent app/calls request described in the issue. Check the Microsoft Graph Communications API behavior for updating the meeting subject and identify which request, if any, owns that value. Done means documenting or implementing the supported update path and confirming the displayed subject changes.