They only appear when in the cockpit and the door is open.
My cockpit returned to normal when the pushback was complete
This cockpit view never happened before I updated to 3.0.0, I was able to pan to my views and back to the cockpit and it never changed anything
That's exactly how's supposed to be, the cockpit door must be opened to let you decide when you want to get the inevitable fps impact of seated passengers, which would otherwise forced on your for the whole flight.