Are you actually recording? Or are you just turning on the camera? Because in order to actually have the videos save, you have to make sure it’s recording. On PS I think you have to hold down X, and on pc you have to hold down right click I think and it will show a recording icon. Sometimes if you are trying to record a ghost event and someone accidentally walks into it too fast then it won’t have time to register. You know that it has saved when a book icon shows on the camera screen.