Usersnap Business Development Manager interview questions

First call with a guy from upper management, went great, we really clicked. Second call with the same person, also went great, not too difficult, fun, we talked about next steps and everything (third round maybe in their HQ and assessment). Then they ghosted me. Literally ghosted me, no reply on mails, no yes or no, no nothing. Horrible experience and sooooo unprofessional.