Element 84 Software Enginner interview questions

The interview was a good experience overall, and the people on the team are great, and the projects are very interesting. The interviews all went great, and when asked if they had any concerns about my candidacy, they said they had none. I got to the final round interview and didn't hear back for a few weeks, and when I followed up I received a rejection seemingly out of nowhere -- they didn't explain why. It was a really confusing experience.