Music videos not being picked up in music folders


recently added music videos to music section artist folders not being picked up by plex. tried the naming convention in the online docs to no avail. the weird thing is i have some in folders that do show up but others do not. how or why is this possible. is this a recent version change of some sorts or possible bug? all the videos show up in their folders except brantly gilbert. and added other formats as .flv, .mpg, m4g, trial no avail. as of 2/25/18


part of the issue there not being updated as part of the library scan they only update when the metadata is refreshed for the artist. in the artist or in the global folder.