Ok so I removed the burners, used a wire brush and compressed air on each one and each groove (to be honest it looked brand new) and still the same result.
I am wondering though, it seems like the burners can be adjusted on their "rack" and the "fins" aren't meeting up with each other on the corners is this important?
also the HSI and the sensor are a touch off center, but still both work
(HSI ignites first burner and when i manually light the one with the sensor the unit stays on
anyway I appreciate all the help