Siri on Apple Watch plays the wrong album - same album every time

Whenever I ask Siri to play a specific album from my music library, it instead plays the first album found in my library - every time. This only happens with my Watch, if I speak to my phone it behaves correctly.

I normally say something like "Hey Siri - play the album Moving Pictures from my library" or "Hey Siri - play the album Moving Pictures by Rush from my library". I can see on the screen that it's understood me correctly. But instead, the first album alphabetically in my library plays - in this case, "A vs Monkey Kong".

If I omit the words "the album", it tells me it cannot find such a thing in my library - unless it finds a song by the same name, in which case it plays that. E.g. "Play Moving Pictures" results in nothing, but "Play Clockwork Angels" results in the song by that name being played, instead of the album.

This issue mainly comes about when I'm driving - in the car, it's usually my watch that picks up my commands instead of my phone.