For Second time now I have been smoking pork tenderloins and both the probe on my tp20 and the MES probe are both saying 147 and 152 respectively. But when you pull the meat and check it with a meat thermometer it is actually around 130 something. I could see one or the other of the probes being off both both are reading almost the same thing. Outside temperature is around 32°. Any ideas what is going on?