For me, that would be a problem.
Do they work on shore power and not on generator? (transfer switch or genset problem?)
I'd be checking for the obvious things like, 110VAC breakers off, a GFCI outlet needing reset, loose wire feeding off the breaker, a loose or broken wire in an upstream outlet feeding down to the problem ones, etc.
Are the problem outlets in a slide? (slide action causing a break)
Can you get your hands on the electrical diagrams for your coach?
2007 Adventurer 38T w/
sway & trac bars, Koni FSDs and SafeT+
2006 Jeep Liberty toad