Splunk Senior Software Engineer - C++ interview questions

I first spoke to a recruiter, who started the technical interview process. I first had a 1 hour tech phone screen with a member of the team, and two days later, I received a Codility test, which was had 3 questions- for 2.5 hours - and it had an online grader, that I got a 100/100 on. I got a reject a couple of days later. I assumed that I didn't make it through the tech screen. When I spoke to the recruiter, she said she was unaware of the tech test. She said she will look into it, and then scheduled a behavioral interview with the manager (I'm assuming that this was done to pacify me a since it made Splunk and the recruitment process look bad because I was rejected after I got a 100 on the coding test). I got a reject a few days later. I don't know what to make of this, but it was a terrible experience.