just a simple visual bug, idk if its been addressed yet
#Compass bay doors invisible on the inside
chilly holly
hollow kettle
its most likely that the face of that part of the model is inverted so it results in "invisible" faces.
solar wagon
its most likely that the face of that part of the model is inverted so it result...
I think it's more likely to just be a 1 way texture like what is most certainly used for the rest of the aircraft's exterior