AmplifyBio Senior Systems Engineer interview questions

I got the first interview the director of It performed it. He was very excited to meet me in person and scheduled an onsite visit. I had to work two extra hours Friday to get the time off Monday. I went to confirm the appointment and hours later he simply stated to not worry about it. When asked about an explanation he never replied to the e-mail. Very unprofessional behavior and it sounds like I dodged a bullet.