Hi @Nikki501
This has been an issue for a long time now. It's a glitch. You cannot assign which of the living room photos the "Where you'll sleep" feature picks. It's always the first photo.
So the work around is, you delete all of the photos you've assigned as living room. You load the one that shows the open sofa bed first and assign as living room first. It will show up under where you'll sleep. After that, you can upload other living room photos and assign them.
Here is the post we worked this issue out. They still haven't fixed the glitch.
https://community.withairbnb.com/t5/Ask-about-your-listing/Photos-assigned-to-rooms/td-p/1768405