Each burner is fed from a separate tube coming from the valve and a common supply line. Something could have gotten into the tube for that burner through the air intake vent, which is a pretty large opening in each tube. Bugs or bits of crispy stuff are a possibility.
Smoky try blowing it out with the Air Compressor Also Bought another Park model on 1st street including the ground. Now with 2, I have a place to try to hide when Audrey comes unglued or gets in one of her moods.
Can't argue with that Facts must be facts. Hope you and the Admiral or enjoying yourselves and the she's not too worn out from the Baby sitting. Only 104 here today It's like 92 in St Louis with the Humidity. Least you can breath here.