iTunes-My Wish List-by Artist list is incorrect

Just a few minutes ago, My Wish List started showing incorrect listings by Artist order, including artists I have never heard of.

My correct wish list includes “The Archies – Bang-Shang-A-Lang” and “The Beatles – Baby, You’re a Rich Man”. I’ve just added “Marmalade – Reflections of my Life” to My Wish List.

None of these appear in the Artist order list. The artist list has the first artist as “Audra Mae” with 5 songs, an artist I’ve never heard of and would be after “The Archies” in alphabetical order.

The list by “Name” and “Album” orders show the correct list.