The preview output of my file rename project looks great. All file names are correct and the folder and subfolder names are appearing in the prefix of the filename.
I am receiving the following error when I attempt to run the job:

Here is a snapshot of my job configuration:


As you can see, the error says it's unable to create / rename the destination file, but in the preview, the destination file name is correct and different.
What's going on here? Thanks!