Henry Schein One Mid level Software Engineer interview questions

Applied for a mid level role, the first two interviews went very well however at the final stage it transpired I was actually put forward for a senior role, and interviewed as such. Was told I didn't meet their 'high bar' despite having an almost complete solution to a technical problem above my seniority. Then given a "coaching" interview where I was told I had gaps in my experience despite getting very good feedback for the same answers to different person in a previous round. Honestly it just felt toxic.