Composer artist toggle button dissapears

Taking the example of ‘Doc Watson’,

Search ‘doc watson’ --> Results on Tidal --> click on performer ‘Doc Watson’ -->

at this point a toggle switch is visible for performer/composer when I click this the composer appears but the button to return to artist disappears. Just a bug on the composer page?

Intrigue has led me to post, Doc Watson has no composer/performer toggle anymore. Paul McCartney has a toggle button that works both ways. Billy Holliday has only one way operation.

Wondered what the logic may be here. Will have a play with adding to my collection to see if I can change it with what I have or whether it’s a deeper meta data linking question.

Has anyone else seen this behaviour change for different artists?