It's time for a new phone because something has finally broken. It's not an unexpected failure - I had a fancy pop-up front facing camera and in shock to no one that is the part that's failed first.
Honestly it's the first time I've had anything fail on a phone in a long time and if anything were going to go it was obviously going to be the moving parts.
The camera still pops up but there's no video and it'll sometimes crash the app that's attempting to load the camera.