Cabin/reading lights not working

[Macgyver515]

I have a very silly, and I believe simple question. I purchased a 2023 Grand design 311 BHS, in the fall of last year. I put it directly in storage, and pulled it out two weeks ago. The little cabin/reading lights, oval shaped with their own toggle switches, are not working in the rear bunk house, or above the two reclining seats in the living area. All main lights are working, and I assumed these small lights were connected to the 12 volt system. The two identical lights, located in the master bedroom, are working as they should. Any thoughts on troubleshooting, or why two in the rear bunk house, and one in the living area, would not be working when everything else seems to be?

[FT4NOW]

My guess would be a loose ground (12v-) connection. They are typically bunched together in a wire bundle with a crimp connection.