Office for Metropolitan Architecture interview questions

It was very good and took longer than expected, which should be a good sign, right? But no, 15 days no update, sent a follow up e mail and no response, after 3 weeks they just said we will not proceed without giving any reason. And of course, asked for a bit detailed feedback, and again ghosting!

The manager reached out to me to schedule an interview earlier this summer. I responded to the email and had been ghosted since then. They never replied to my inquires again. Seems very unprofessional and bad management.