Sometimes when you have refreshed the console or reconnected your video may show twice in the booth.
It may be because of a slow Internet connection. The video server is trying to establish a reliable connection and sometimes does not drop the first one until the server is completely confident that you knew connection is good.
The second connection should disappear by itself soon. If it does not disappear in a couple of minutes, refresh the console.
You can do it by pressing on your keyboard:
-in Windows: Control + Shift + R
-in Mac: Command + Shift + R
This will update InterStar ICP to the latest version as well.