LastPass Senior Application Security Engineer interview questions

Ghosted Mid Interview: So I had screening call with one of their talent acquisition member. She asked very basic questions like why I want to join etc and the moment she heard my accent she said "Sorry but I need to confirm your right to work in the UK". To which I said sure it is mentioned in my CV I have ILR in the UK and I do not require any kind of sponsorship. She said she still needs confirmation and I said sure I can share with her my right to work code which she can confirm online. She cut the call and I emailed her my right to work share code. I have not heard back from them since then.