Currently, there is an issue saving any Photoshop file that is opened from FVCentral.
We recommend you copy the Photoshop file to the Scratch (or your external hard drive) to work on it. When you're done working, save it on the Scratch (or external drive) and then copy it to FVCentral.
If you have already opened your Photoshop file from FVCentral and are having an issue saving, try closing the Finder window that is previewing your Photoshop file and then saving it again. If this doesn't work, you will have to save it as a copy.