Live Events: enable presenter to see red outline around their image when live
Until recently, presenters could always see a red box around whoever was live on screen - whether that was themselves or another presenter. However now they only see a red box around the other presenters, but not themselves.
Microsoft Support say this is something they have changed and the default behaviour is to no longer see the red outline on your own image when you are live. So there is never any notification when you go live - you just have to listen carefully when you are queued and look out for no red squares around others.
For any live event, but especially those with multiple presenters, reinstating the red outline around your own image when live would be very helpful and help make the presentation smoother.