First You said with the generator running an "Excess of power" was sent to the inverter and bad things happened.
Typically inverters have two circuit breakers. Or more. if two they may be on the inverter itself. if more (mine has 3) in a "Sub Panel" (2nd breaker box).
A tripped breaker may take out half the outlets in the coach. More or less.
Second. Were you plugged into shore power when you started the genny.. One of the things they forget to tell you is "DO NOT DO THAT" especially with the A/C's running.
WHY Well A/C's are BIG inductive loads. And Electricity like everything else obeys the laws of motion. (An object in motion tends to keep moving in the same direction at the same speed unless an outside force acts upon it).
So when the transfer switch "Broke" the connection the electricity wanted to keep flowing.. and the voltage as a result.. SPIKED. this spike can fry the transfer switch.. And other things.
Turn off wait 3 minutes then activate alternate power source.