Thoughtful Automation interview questions

Applied for Senior Fullstack Software Engineer and got through initial screens and Technical Interview with good feedback, however, the team felt I wasn't the best fit for the role but suggested moving me over to interview for the Forward Deployed Engineer. Had to restart the process, which took about a week or so to setup and went through similar Interviews. Did well on Technical Interview and got good and consistent feedback from recruiter throughout process. Had a final round which was more behavioral with head of FDE and FDE Manager. Felt good about it, however, I received an auto rejection email days later with no feedback or reason for decision. You'd think for a final round you'd at least get some human interaction but I was ghosted after reaching out to my recruiter, who was so communicative and responsive throughout my interviews. Whole process lasted about a month and I was left with no knowledge of where/why the decision to not move forward was made.