Grab Software Engineer-1 interview questions

Had a very weird experience with Grab. Firstly there was DSA round, where my performance was average. They said I didn't clear it so I was fine. Then again HR contacted saying that they will go through further rounds. All rounds went well I got 1 weak Yes and 2 strong Yes. At last I was rejected because of R1. Wasted my 2 weeks atleast. Very bad experience. The interviewers had not even gone through my resume before the interview. There were 4 rounds. R0- Competitive level coding assessment on codility R1- Easy to medium Leetcode questions on DSA R2- Low level Design of Jira ticketing system R3- Basic questions on system design, my experience, Low level design of Logger. Hiring manager round: Questions on my work experience.