Brand Networks interview questions

Got an online test link first. And after solving that received a call after a couple of days for interview. Interview was 2 and a half hours long. After that received a call after couple of days regarding offer.

Had a phone interview first and then got called in for an in-person interview. HR was unresponsive in scheduling time for interview. Fast forward to the interview, the experience is good. The team members are very pleasant to talk with. The questions are mostly behavioral and about your previous experience. After the interview, I send a thank you email to HR person, no response. I waited another week and send in another check-in email, still no response. I guest the completely ghosted me.