If there are two or more Containers (Lists and others as well) with same name in one yang module, example is not rendered properly. It always takes the last one and render example based on that.
e.g.:
module -->

container jukebox {
container library {
list artist {
key name;

leaf name {
type string

}

list song {
key name;

leaf name {
type string

}
leaf location

leaf format

leaf length

} // end list 'song'
} // end list 'artist'
} // end library

list playlist {
key name;

leaf name

list song {
key index;

leaf index

leaf id {
type leafref

mandatory true;
}
} // end song
} //end playlist
}// end jukebox

example generated -->
{
"jukebox": {
"library": {
"artist": [
{
"song": [ <---- wrongly generated song. should contain name,location,format,length

],
"name": "string"
}
]
},
"playlist": [
{
"song": [

],
"name": "string",
}
]
}
}