Found out how to start the server as a normal program, so I could get a
full logfile. This logfile showed me that the album in question was
scanned twice. First scan came from a Playlist, and the second scan
came from the physical folder.
For some reason this made some of the songs show up twice
I have checked that. I have had a similar problem with another album,
and here it was because of another album with the same name. I solved
that by renaming one of the albums, since the "Common Album Name"
feature had some problems with this album because it has a special
character in the name. I
Every time this has happened to me, it is because a song outside of that
directory had the same 'Album' tag.
Ie, something was either mistagged or it's a common album name like
'Unplugged' or 'Best of' or even Frank Sinatra: Trilogy vs the ELP
album of the same name.
Check the songs in the album