Upwind Backend Engineer interview questions

The interview process invoiced a 30 minute interview with the team lead in Belfast, a 60+ minute technical interview that talked more about higher level concepts that specific code. The third interview was with a Senior VP and was more personal and involved a logic puzzle. The fourth interview was with HR and mostly involved standard HR-type questions. The whole process, particularly with the Belfast team, was very pleasant. After the HR interview I was told I should expect an offer in the 'coming days'. When I followed up a week later I was told it was going through final approvals and would be with me 'very soon'. Two weeks after this I've been entirely ghosted and all emails are being ignored. I appreciate things might change, but to cease all contact this far into a process is simply disrespectful.