By looking at pictures online of your model it looks like the LP stove/cooktop is in your slide out. I would double check for the rubber gas line under your slide out and make sure the line is not kinked. On rare occasions these lines twist when the slide out room gets extended and it shuts down the supply of LP through the line.
2012 Redwood 36RL with dual awnings, 6500 Onan, Fisher Paykel Dishwasher, Splendide Combo, Goodyear G614's, Full body paint.
2015 F550 Lariat 176" wheelbase, 8' box, B&W companion