No popularity field on Album search

[Georgielovesmusic]

I am hitting this endpoint: https://api.spotify.com/v1/search?q=Beatles&type=album,artist,track

I am expecting the response to contain albums, tracks, and artists that are found given the specified query. From that response, I am gathering a list of results that contains the ID, Name, and Type fields (fields that are present across albums, tracks, and artists). After this, I decided to incorporate the popularity field to sort the list based on popularity. 

After adding the field on the pojo and modifying my deserializer to accept it, I was getting an NPE. I found the problem to be that the popularity field is not coming through when performing an album search. Is there a reason this field is omitted from the albums search result object?

I have attached photos of the response objects received by the search endpoint. I minimized most fields for clarity; I simply want to show that the artists & tracks models include the popularity field while the albums model does not. 

NOTE: I skimmed through at least 5 items within each model and noticed the popularity field on all items within artists & tracks, and no popularity field on any items within albums. I wanted to note this because I thought that maybe some items would include it and some items wouldn't, but it seems to be pretty consistent.

[spodevtify]

I'm also missing this feature.