I am having the same problem. Left my computer on for 24 hours as the media was still processing from my computer. Still getting the icon on Ancestry tree and not the documents or photos which should be there. When clicking on the image it still shows the icon.
Computer has been shut down previously after sync, and the media still showed as processing on my FTM when I turned it back on.
Think it is still more of a problem with FTM treesync, and it still has bugs that were not addressed with the new patch.