Unable to delete media card files after OS upgrade
 

After upgrading to OS 4.6.0.305 I am unable to use the media app explore function to delete pics, video or music file. Neither those transferred to the device or pics taken by the device can be deleted. There is no delete option in the menu and the del button does nothing. I have FileScout installed and can use it to delete. Why can't I do this with the built in app?