Homeward interview questions

I received an interview request withing a couple weeks of submitting my application. I had a brief HR screening call, an interview with the hiring manager and a panel interview with the team. Everyone was friendly, professional and asked great questions. I hadn't heard back when they said they expected to make a decision. When I followed up via email, I was told they left me a voicemail. I did not have a missed call or a voicemail (voicemail was not full). I asked if they called my phone number and I never received a response. I felt like this was a really strange way to end the interview process and let someone know they went with another candidate.