ISSUE RESOLVED
Holy smokes! Thank you all for helping me through this! I was at my end and ready to give up after today! Thank you to D W, 5picker, A32Deuce and especially
davie.
My Resolution
Davie suggested I go back to that junction box underneath bed (next to dist panel) and check voltage using multimeter. I dreaded opening that box again since the bed does not lift and I have to crawl half my body in through the removed drawer to get to this box.
The first time I inspected the wires in this box, I had only removed the electrical tape to inspect the caps or visually see the wires for any burn marks or melting. Then shut the box and moved on to checking each outlet.
Well after davie's suggestion, as I was removing the neutral (white), one of the wires poped right out too easily as I was uncapping. This wire that poped out was way longer than the other neutral wires so it was not really possible to twist them all together. So I cut the wire back and twist them all back up. Lo and behold, everything tests good! I used my plug tester to verify correct connection to each outlet.
THANK YOU ALL AGAIN FOR HELPING ME THROUGH THIS. I've learned a lot now with this new RV.