Receive an email invite to complete a Hireflix one-way screening with a few timed questions, then next step if moved on is a 30 minute recruiter screening covering work history and motivation

I went through 3 stages of the interview process: 1) HR/Recruiter interview - 20mins - Basic background discussion and company fit - pleasant experience 2) Hiring Manager interview - 30mins - Background discussion and a series of challenging questions (what would you do in this situation, what would you recommend, etc.) - pleasant but very one-sided (didn't get time to ask questions myself) 3) Case study role play - 45mins - You get a week to prepare a presentation for a simulated client meeting and present your deck in front of 3 ramp/client representatives. Honestly great prep for the role. The feedback from every discussion was very positive, At the end of the case study the hiring manager said verbatim "Hats off, great job, you can tell you do this all the time". 3 days later I get an email saying they're not continuing the hiring process... I was speechless... I kindly asked the recruiter for "any type" of feedback for self-improvement and to better understand their decision. They haven't gotten back to me. I'm very disappointed in Ramp, as I put a lot of effort in this interview process and was left with a great impression.