Cannot Cut and Paste between folders

I have open media vault setup as a plex machine for my movies. Generally works great. I have all movies backed up on a another file server in another location so I do not use any protection. I have several HD drives installed all with different movies on them. For instance one drive is movies watched, one for movies I haven't watched. I have a networked pc setup with mapped folders to the OMV. I can add movies to the folders easily. When I go to take a movie I just watched and move it to the "movies watched" folder I can do by copying and pasting. Then I need to go back and delete it from the "movies not watched" folder. For some reason it will not let me cut and paste from folder to folder. Any advice would be greatly appreciated.

I believe I have tried this and still nothing. I will look at it again tonight.