Invictus Data interview questions

I recently interviewed with Invictus Data for a Frontend Developer role. The process began with an HR screening round, followed by a technical interview that lasted around 45 minutes. The interviewer asked several detailed questions on React, JavaScript, Next.js, and TypeScript. I answered most of the questions confidently and genuinely expected a positive outcome. However, I was later informed that the feedback was negative, without being provided any specific reasoning. Even after politely asking for feedback to improve myself, I received no further response. I don’t believe this is the right way to treat candidates who invest time and effort in the process.