THe above answers are good. also it is in theory possible to put a generator in an rv in such a way it can not breath properly when moving.. Doubt that's it though.
One thing often overlooked is the Main Engine and the Generator SHARE a fuel tank. if that tank is not properly vented the more powerful fuel pump for the main engine may generate a vacuum strong enough to deny fuel to the less powerful generator fuel pump.
Rare. but I've read of it happening,
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times