Problem with "Master Detail Relation" (Record Detail Page)

It does not refresh the list after updating, but the changes were made to the table.

After update

If I use --RecordValue-- it refreshes after updating, but shows the index.
I’m interested in showing the “localidad” field and that it is also refreshed in the list after updating.

That is because the table the changes were made on, is different from the table containing the label you want to display.

You can make a request in the Suggestion category so that the dev can look into it.