Object not displaying

Alright so I have scene that I am making for a class. I was given a script to make a cutscene that I did not code myself, but it is used to start the cutscene when the player is in range of a hang glider mesh and when they press ‘e’. The hang glider is parented to a camera, and I already have made and applied the animation. When I place the script on the camera, the hang glider disappears when test the scene, though I can still see its gimbal. Can I get some help with this?

I have noticed that in the inspector, when I press pause then play to jump into game mode, the check box at the top beside the name of my camera becomes unchecked. Is this the root of the problem?

It also seems like any script I attach to the camera/hang glider will cause it to act this way, I just tried a script I know that works on it and it will not switch to the hang glider camera and it still disappears.