Issue with Robocopy only copying folders, not files, in Windows 7

Last week I used a robocopy tutorial on this site to create a backup script, and it was working fine. Today I tried to run this script, inputting new destination information but leaving everything else the same, and now it is copying all of the folders, but none of the files.

It counts a total of 509 Dirs but 0 files--no skipped, no mismatch, no failed.

My syntax/options are as follows:
robocopy "source folder" "destination folder" /E /tee /log.Public_backup log.txt
robocopy "source folder" "destination folder" /E /tee /log.Training_backup log.txt
pause

Does anyone see what might be causing this problem or have suggestions?

The source folder is directory:\folder and the destination folder is directory:\folder\subfolder\subfolder, if that matters.

It should default to all files (*.*), but you could put the *.* in the command to see if it makes a difference.
i.e.
robocopy "source folder" "destination folder" *.* /E /tee /log.Public_backup log.txt

If that doesn't work can you post the actual commands you are using, with the real folder names ?

@DavidE, I will try that next time I run into this issue. I was eventually able to get it to work--I removed the options and replaced them with the /MIR option, and then edited the commands so they were back to their original state--when I ran that, it worked and copied the files as well as the folders.

However, last Friday my supervisor attempted to run the Robocopy and told me that it only copied the folders for him. Not sure what the difference is between when it works and when it doesn't.

I will try your suggestion if this issue reoccurs and post an update to this thread.

Thanks for your help.