I love this tool and use it often. One issue I've run into though is with the clipping on objects close to the camera. There are a few tracks, Atlanta 2019MB for example, that place cameras slightly behind the fence. When FreeCamera is first enabled, many of the cameras suddenly become useless because the fence is right in front of the frame.
It would be helpful to have an option to turn that feature off when it isn't wanted, or stops certain tracks from working properly with existing cameras.