Glad the stove is working again, but here are some things to check for if you have problems in the future.
1. Is there any air in the fuel line? In my experience, even small amounts of air in the line produce the behavior you describe.
2. Is the stove shutting off when the blower lid is up? Mine did this after servicing from Scan Marine. I figured out it was overheating. Even with the cabinet doors open to provide more air it still overheated in cooking mode. I zip tied the switch for the lid so that the blower fan stays on all the time and haven't had overheating problems since.
3. Is it windy, and is the wind blowing into the exhaust outlet? I've had the wind blow out the and cause a shutdown.
I've found the Wallas to be the least reliable piece of equipment on board my boat, which is frustrating considering how much it costs. Mine completely failed with only 300 or so hours on it. My theory is it failed because it had "blown out" a lot when using it at speed and this resulted in significant soot buildup in the combustion chamber. Scan Marine sold me a small stainless steel air deflector that screws onto the exhaust outlet that supposedly helps with this.
If you do have problems in the future, give Scan Marine a call. They have been helpful in the past.