audio not found

I'll drag an audio file into a folder and then the timeline. When I click play, i get an audio file not found error. 

Steps to reproduce:
    1. ...
 
Result: ...
Expected: ...
 
System info
    Application: Premiere Pro (Beta) v14.9.0.41
    OS: macOS v11.1.0, RAM: 16.00 GB, CPUs (logical): 8