siri wont play playlist if artist name = song title

For example, if I say "Hey Siri, shuffle artist Beatles" everything works great. I get a randomized playlist of songs by the Beatles.

But if i say "Hey Siri, shuffle artist Green Day", Siri responds by playing only ONE song: "Playing 'Green Day', by Green Day". Even though I have dozens of Green Day tracks on my phone.

The problem is that there is a song ("Green Day") that matches the artist name. Why Siri looks at the song name (when I asked to sort by artist name) is a mystery. If I delete (or rename) the song 'Green Day', then the same command "Hey Siri, shuffle artist Green Day" now works perfectly.

Weird.