Lorex LN10802-166W configuration question

I have a lorex LN10802-166W. I have all of the cameras installed and working. One issue I have is in the beginning when I would do playback I could see yellow on the timeline bar so I knew when movement occurred making it easy to find movement on off hours. It was working for about 5 days now it no longer shows yellow (movement) in the timeline bar it is just all green even when there is movement. Does anyone know where the setting is to fix this?