I think I'm having the same problem. In the "New Issues" tab, it says that the list below shows issues--but there's no list. There is the "Bulk Operations" link, however, which opens options to fix files, though no files are shown.
I couldn't figure out how to insert a screenshot, so an image of what I'm seeing is here:
http://www.socalshoppingplace.com/WordFence%20Image.png
That isn't the domain where I am doing the scan, as that's in maintenance mode, but hopefully the picture helps.
Any help is appreciated.