@freisatz when using automatic-links currently they’re not displayed on card share pages – as the share page is unaware what the names of the cards are so they appear blank. We’re working on an improvement to this, in the meantime Robin if you add the names of the cards within the card links so the contents will appear correctly.
@ivomota when clicking open in supernotes – this should open the card in Supernotes, asking you if you’d like to join it. If this is not the case, please get in touch with via the in-app messenger ( ? ) > Chat with Us and we’ll be on hand to help you further.