Hello This Hudson River West Point pellet stove would not start. Only 2 pellets dropped into the burn pot during start-up so the stove went into shut down with the second heat level light blinking. I checked, and all the components were working fine. Then, I combed my fingers through the pellets in the hopper and found a big air pocket! A little more combing and I found the dark hard substance on the edge of the hopper in the pic below. At this point, I emptied the hopper and found more of this substance that created a bridge so the pellets would not drop into the auger chute at the bottom of the hopper. After removing this stuff, I put the same pellets back in and the stove fired and ran fine! We did catch it before any of this stuff got into the auger flight chute. All the pieces came out of one bag of Home Depot pellets called Nation's Choice - Premium Hardwood Pellets! ! ! So has anyone seen this dark, hard stuff that may have gone into the bag of pellets during processing? What is it?