Happy new year to you to! Depending on your video card you have a Maximum Number of Lights that can be active in the OpenGL view at a given time. If you add more than this number of lights to the scene, they will not contribute to the lighting in the interactive view. They will however contribute to lighting in rendered images. To know the number you have available with you specific video card go to the Help menu and choose about your video card. For the bustier try to change the diffuse colour, the ambient colour and strength to lower value it maybe will help. Jacques