I have read recommendations to remove all power from the RV - battery and shore power…then plug it all back in. This will reboot the incommand
Another thing you might try - go to your incommand control board in the basement ( I assume yours is in the basement storage compartment similar to mine). Remove the clear plastic cover. You will see some relays - 1x1 little black box things. They are simply plugged into the control board. They are all the same - try swapping them out. They are labeled. Find the one that controls interior lights - pull it out and plug another one in. This fixed my issue with interior lights. That relay was weak. You can buy replacements on Amazon ~$10 each if needed…just type in the numbers on the relay and search. The pics below are from another thread on the subject just to show you what the relays look like.
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'19 Chevy 3500 High Country DRW
'18 Montana 3921FB Aggie 77
('17 Laredo 330RL previous RV)
In the sticks near Austin TX
Aussie Gus+Texas Heeler Jimmy
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