There could be a couple of things. In the main menu, look in Scene Misc. There's an option to use the Scene Load position, as well as a way to set it where you want. The scene will remember that if you set it. Some scenes use an empty atom with the SpawnPoint plugin set to go active on scene load. This will override the Scene Load position. You might have to select Show Hidden in order to find it. It could be called anything, but it's often called Spawn or just Empty. You can set the plugin not to activate on scene load and then use the scene load position instead.