I cannot get this thing to stay going this morning. I put the dust in the micro for 45 seconds before stating. I get it all setup, light it, let it sit out for a few minutes, good smoke going, put it in the smoker and within 5 minutes no more smoke. I take it out let it sit out for a few minutes and the little breeze that is blowing outside today gets it going again. Never had this problem before, smoker vents are the same as they always have been. Any suggestions?