BuildingLink.com Data & Integrations Associate interview questions

On the day of the first round interview I waited over an hour for an email response from the recruiter since they show up for our call. They finally responded to my email and told me that they had to jump into another call at the same time as our call and that they'd reach back out to me to reschedule which never happened. A couple of days later I was notified that they decided to move forward w/ another candidate. Completely unprofessional.