Lew, you are right about a pellet void causing the flame out. No fuel, no fire. But I still believe the dust might have played a part in it though. There was a lot of dust, more than what I expected considering how careful I am when adding pellets to the hopper. I think dust in the pellet hopper could have contributed to the bridging of pellets and caused a void. I also think, dust from the hopper and pellets being ground up from a loose auger bolt could have caused the fire to burn faster than fuel was being added to the pot. That's just a theory, sometimes I just over think things. Lol.
The dust accumulation at the top of the ramp and under the pellets on the ramp in addition to some caking in the fire pot have me scratching my head.
About that soda pop, you take IOU's?