Airplay display always off
I'm using a Macbook Air 2017 and suddenly my Airplay won't work. The icon isn't showing up at the top of my screen and when I go into Preferences, it says Airplay Display is off, but there's no option to turn it on. The only option in the dropdown list is "off".
I'm running the latest version of Catalina.
Any suggestions?
MacBook Air 13", macOS 10.15