@karlakr8 said:
when I select a .cube file from my hard drive, it doesn’t display a file path, but “file not selected,”.
OK, the file selector actor isn't working on your system.
I will have to move my project over to my mac and do some testing to fix this.
What macOS version are you running?
You will need to disconnect it from the load Cube for Color Grading actor, and provide the full file path for the cube file for the 'cube_path' input, including the file extension.