Landis+Gyr interview questions

I interviewed at Landis+Gyr for Technical Product Specialist position. After the initial screening round with recruiter, first technical round was panel interview with the hiring manager and the team. It was a mix of technical questions mostly in SQL and some scenario based. The next round was a 30 minute meeting scheduled with the senior manager and the hiring manager. This was more about our past experiences and follow-up questions based on the answers given which led to in-depth technical discussion. Overall experience was positive. However, senior manager felt 30 minute interview duration is not sufficient to assess the candidate. Yet, they did not schedule any interview further.