I did a bit of looking on this drawing and snipped out what I see as the path for the inverter and those outlets, in thinking that you "may" need to check back along the path to see where it is not feeding power.
From this drawing:
https://www.winnebago.com/Files/File...ire_153555.pdf
I'm not sure I agree with the way the drawing shows as it seems to leave the path open back to the load center and I " think" there should be a connection shown where I placed a question mark, but it may help to be able to walk back along the route to see where things are open or if the breaker is tripped it may help find which to look at for tripped?
Click this drawing to bring it up for better view.
Good luck on the bug hunt!!
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!