I have a KC combo grill, LOVE the set up, only (big) issue I have is pellets won't flow into the hole. I ran out of pellets during a smoke only because the pellets don't seem to slide into the hole. once the pellets above the feed hole were gone, flame went out. Hopper still had pellets but again, the sides don't seem sloped enough to flow them into the hole. anyone else with this issue?