Stellic Implementation Project Manager interview questions

The HR representative was very kind she reached out to me the day after I applied online. I had a screening with her, only thing I thought was weird was that no benefits were mentioned and the salary wasn't mentioned either, but it was on the job posting. I moved on to the next round and had an interview with the hiring manager and it went really well, I found out that I got to move to the next round. The next round was with two individuals who were a part of the team I was given a very vague prompt where I had to create a deck to present, as well as some data that I have to find a mistakes with. After I finished my presentation, I was asked how I did and I said I thought I did pretty well and that there's always a challenge with having to build on a prompt and create your own scenario. The interviewers both agree that I did really well and only gave a small amount of feedback that I was filling in space for what the client would have said and answering before they had a chance to ask the question but they specified that this was such a small thing and that if I had actually known the client it would be different. I was very much under the impression that I would move on to the next round, especially since we had been joking and having a good time during the interview, but I found out the next day that I did not get to move on to the next round. The HR representative said that the feedback from the team was that I had really strong project management skills, but I did not have the communication style they were looking for for this project. This was extremely shocking to me, not only because of the feedback I got during the interview, but also because communication and relationship building with the client is my strongest point that I've ever had in my 14 years of PM experience. I asked the HR representative if she could get more clarity, mainly because the feedback seemed very contradictory to what I was told the day prior by the interviewers. She very sweetly said she would look into it and get back to me. I'm hoping to get some clarity because I have never been told that I was lacking in communication skills. Especially since I had worked for the Department of education, a top-tier university, and even a local school districts implementing multiple softwares, I'm really confused at the outcome, but completely understand that not everything is meant to be.