Apologies, just noticed that this album is ‘Unidentified’ on my end. Not sure what data it is using but everything shows up correctly and the album is tied nicely to her other albums.
Rovi’s response was that Youn Sun Nah 5 is the name of her quintet, so it will remain in the credits. However they did concede that the album artist should be Youn Sun Nah. Will take a few days for the changes to come through (which may not be ideal, but should make a bit more sense).