Hi, all I found this post https://powerusers.microsoft.com/t5/General-Power-Automate/Add-user-to-Microsoft-Teams-Channel-private-using-Microsoft-Flow/m-p/477305#M46207 and many others about how to create a channel and add a new owner. However, they all use the old HTTP connector. I need to use this one:

I can create a channel no problem using this connector:

But anytime I try and add a new owner the flow will not save, even if I create the channel and then in a separate call try to update the owners:

I've tried this code:
{ "@odata.type": "#Microsoft.Graph.channel", "membershipType": "private", "displayName": "Private corner again", "description": "This is for private content", "members": [ { "@odata.type":"#microsoft.graph.aadUserConversationMember", "user@odata.bind":"https://graph.microsoft.com/beta/users('{UserID1}')", "roles":["owner"] }, { "@odata.type":"#microsoft.graph.aadUserConversationMember", "user@odata.bind":"https://graph.microsoft.com/beta/users('{UserID2}')", "roles":["member"] }, ] }
And I've tried adding a second @ sign but it will not save.

Any ideas would be greatly appreciated!