Premiere Pro Beta crashing every few minutes

Premiere Pro v15 is really buggy for me. The prior version seemed to be much more stable. I'm working on a doc with 4 or 5 interviews, all of them multicam. I was able to get them all translated hassle free on the previous version. Now, as I'm trying to transcribe a new multicam interview, the software freezes. I click the button the "transcribe sequence", the message "Creating auto transcription" appears, together with a text (Rendering Audio) and the spinning ball comes up. I tried creating a new project, bringing in one of the interviews but it gets stuck on "Creating auto transcription".

Please, help!

System info
    Application: Premiere Pro (Beta) v15.0.0.19
    OS: macOS v10.15.7, RAM: 20.00 GB, CPUs (logical): 8