Unable to Import Sound Clips or Create New Audio Tracks - Storyboard Pro 6

I support IT for an animation studio, and currently have a board artist unable to import audio clips or create new audio tracks. He receives no error code or message, it purely does nothing.

It fails when trying to import from File-Import-Sound Clips (Via new audio track or current audio track), and right-clicking the timeline to create a new audio track does nothing.

I have tried reinstalling the software, trashing user preferences, using different audio files, but nothing has resolved the issue so far. Additionally, I have been unable to recreate the issue on another machine.

Any troubleshooting tips would be greatly appreciated, as I do not have much personal experience operating this software. Thank you!