NPM Problem .Late information on chart.

Hi guys,

My object monitoring graphic seems like showing late information around 1 hours as the picture below shown :


i take that picture at 10.30 AM, but the information is too late as the graphic showed. I already tried running database maintenance but still no luck. It seems that  the pooling engine is not working correctly since i saw many queues in queuing folder. But i'm not sure if that really the issues. Is there anyone of you experience this ?