Initial interview went well. Was asked to prepare a component for a live demonstration in a technical interview. Prepared for days and had to purchase a software that I didn't own. At the time of the technical interview I showed up to a closed room.. I received an email 5 min after the interview was supposed to start to let me know the interview was postponed. They never followed up. I wasn't interested in asking about the interview after. That's just not a good sign.