To comply with the updates to the Australian and New Zealand Standard AS/NZS 5263.1.7:2020 (Gas appliances: Domestic outdoor gas cooking appliances), you should not connect a gas cooking appliance to your caravan or boat if:
it was manufactured post recertification and carries a permanent marking stating “Do not install in, or connect to consumer piping or gas supply system of a boat or caravan” (printed on data label on Weber barbecues); and
It does not have a flame safeguard device fitted.
Lots more info here about Weber Q mainly but the new Ziggy nomad has flame failure