Example:
I created a relationship "Surikata Records" "personal label for" "Mňága a Žďorp".

You can see the relationship on the label object:
https://beta.musicbrainz.org/label/26d477eb-d14c-46ae-8064-665c9dfb7943/relationships

but it is not visible on the edit page:
https://beta.musicbrainz.org/label/26d477eb-d14c-46ae-8064-665c9dfb7943/edit

On the edit page of the artist the relationship is visible and editable:
https://beta.musicbrainz.org/artist/9a29aa01-13d6-4d60-a278-4b0df62edd9a/edit

The relevant edits:
https://beta.musicbrainz.org/edit/33241006 - pending removal (https://beta.musicbrainz.org/edit/33241329)
https://beta.musicbrainz.org/edit/33241041 - I did not see the relationship so I created a duplicate.