So after a full day of research and talking to a great tech guy at Dinosaur Electronics, this is what I came up with.
My RM3862 has what they call a "smart" eyebrow controller. After diagnosing the problem throughout the day and several phone calls with the tech, it sounds like my eyebrow controller is the issue. I installed an updated snip and clip type temp controller in the fridge a few years ago and it has worked great....initially that was suspected. Currently I have the board "jumped" with two leads I made to mimic the control of the dumb controller (simple push button on/off) and so far the burner has remained on for hours and I will report in the AM once it has been burning for 24hrs....which would be the longest it has worked on LPG since the issue reared it's head.
Thanks for the help and I will report findings
Joe