I updated premiere pro ver 25.6.0 Beta and there is a problem. The sound wave does not show.

Did you get it working? When I clear my cache and start a project in Beta 25.6 build 31, it takes about 10 seconds to get a waveform before it starts working. This with a production test project with 3 clips. It's working as normal, but seems a bit sluggish to get around to those peak files.

w11 24H2 (clean install)