Braintree interview questions

Recruiter reached out to me on LinkedIn and after a phone call, I was invited in for an in-person interview. I was asked to do a written test and was supposed to meet with one other person. The written test was not difficult, and was designed to ensure that applicants/interviewees could string out a complete sentence and communicate messages to the company when/if needed. Beyond the written test, there was a period where I was left alone in the room by myself while the recruiter tried to track down this person. Eventually, the recruiter returned and said that this person wasn't going to make it and that they'd reach out to me to schedule another interview. I never did hear back from them about it. My suspicion is that they knew that they weren't going to advance with me or make an offer, so they decided to not waste this person's time meeting with me. It just felt very coy and unprofessional.

Spoke with the recruiter for an initial phone screen and then was given coding challenge. Received rejection email a couple days after the submission. Received no feedback on the coding challenge. After putting in some work on the challenge I would've appreciated at least some feedback/review. Have been reaching out to the recruiter who keeps telling me that I will get feedback soon but its been nearly 3 weeks.