Suburban oven pilot will not stay lit

I have a Suburban 3 burner range, model SRNA3LBBEZ purchased in 2018. There is an issue which is driving me to drink. I can light the oven pilot fine, and the main burner lights as expected. At some point, I can hear and see the pilot sputter and eventually when the main burner shuts down, the pilot will go out as well.

I did some searching and found a few posts that outline my exact problem. The most useful posts indicated that some Suburban ovens had a bad pilot assembly with too small an orifice and when the oven warmed up, the orifice would close up and restrict the flow of propane. I went out and bought a replacement pilot (part 161209) but after I install this, the lit pilot is a big yellow flame rather than the nice blue flame of the original pilot. I've checked all over the oven gas circuit and I don't see an adjustment anywhere. The new pilot looks just like the original pilot except for maybe the size of the pinhole.

Someone please help me fix this. I've called Suburban and the nice woman basically told me that she can't help me at all. The only thing they can do is refer me to an authorized service center. My range is in a remote location and taking it to a service center is not really an option. How a manufacturer can refuse to support their own product is really beyond me.