Meta Software Developer interview questions

First I applied for a Software Engineer Intern position, passed the first video interview and my recruiter proposed me to try the Grad position. Then they invited me on 3 onsite interviews at the London office. The trip was organized at a really high level. Travel team works perfectly. The overall atmosphere was nice and comfortable, the office is great. Unfortunately, I was refused.

I had a university recruiter reach out to me to apply. Then after a simple application I was contacted to schedule a technical interview. The technical interview did not go well. I was unable to understand the interviewer due to a thick accent, so it made introductions and the questions hard to understand. I then solved the problem given and was contacted the next day with a rejection email.