Collect Files NOT Excluding Unused Clips

Project Managers Collect Files and Copy to New Location with the Exlude Unused Clips not working as normal.

I used to use this feature all the time to export b-roll from one project to another. I would make a sequence with the selects I wanted then Copy the original files to a new location. 

Now when I do this all the files in the project are being included, when I only want the clips from the sequence included.