Animation Playlist struggles

[Selkie-in-Disguise]

Hello, I'm new to WW and LL. 

 

I'm having some trouble putting together playlists and having them actually play out completely. I haven't found many threads about them, although one did mention that there's specific orders of categories that they progress through although I cannot find anything official or more definitive with the categories. 

 

The one I'm trying to work with right now has 9 animations in it, and 3 are always a different colour and never play in the queue. I can move them around, but anything after the first 6 is always an issue and I'm not sure why. Is there a limit? They are all by the same animator and for the same object type, and they play fine selected independently. Just not in a playlist.