[significantly redacted question, after some additional checks]
I’ve recently introduced UniversalViewer to show media in an Omeka S installation. Many of the items include links to other Omeka S items, either added directly or through the relevant feature of the 'custom-vocab` module. In UniversalViewer, in the media information panel, these elements are shown as clickable, but the links are actually to the item being currently displayed (so clicking just reloads the current page).
In some cases, however, (all of the same field) the link goes to the correct item page, but on another site of the same Omeka S installation, which is due to generate some confusion.
The issue is not within UniversalViewer, but can be seen already looking at the
manifest, so I suppose it’s an issue with IIIF Server.
I’m running the stable version 3.5.16, but links do not work also on updated test server with the new 3.6 beta. On the updated beta, however, the link is always to the current page, and I do not seem to have the more unusual issue with active links to the right item on a different site.
Any suggestion on how to deal with it? Having the correct links is of course best, but no links at all would be better than the current state.