Audition 24.4.1.3
If a file has two consecutive spaces in its name you can't open it from Windows Explorer by clicking on it or using ope or ope with or drag and drop. And that applies to any program that uses "Process start" by passing the file names. You can only open the file using the "File Open" in Audition.
All of the above work in Audition CS6. I'm using Windows 11.