Shuffle not using all songs in a playlist and I noticed a pattern

[Floopindoo]

Shuffle seems to only be using a couple hundred songs in a playlist of 1000+ songs.

I've also noticed that it uses songs around where I am looking in the playlist.

I'm going to use imaginary numbers but:

Say I'm looking at the begining of the playlist and I shuffle play. It will shuffle songs 1-200. If I scroll down to song 200 it'll shuffle 100-300 and so on.

This is really annoying when I want to listen to variety playlists.

Hopefully this pattern could be some help in fixing the issue