Ricerca campi utente multi-selezione

I implemented a profile user field (question) with a multi select and made it optional and searchable. The idea is to allow users of a certain component to find each other.

First it took a day or two for the question to be visible in profiles. Is there a nightly indexing going on or something?

Second, now the multi select options show up in the user info card and when I click on them it starts a search in groups. Thats very neat! however the search is always empty. Are there some more conditions which need to be met? And also why does the search have a time range, does it work on posts or on users?

Also searching in generic search for the terms does not work. Are there problems with blanks or uppercase in the name or does it also need some re-indexing to work? I am using stable containers.

Also a problem: The profile summary (expanded header) also shows the field (list of selected entries), but they are not clickable in this location.

Little correction if i go to user search i can actually search for the multi-select terms. But the links from the Cards dont use that search type.