Okay, so by default Jaikoz tries to match group of songs to album , if it cannot do that it deosnt match to album, it matches song only. The starting point for a group is the folder because usually customers store songs, one folder = one album. If you have very many songs then it realizes it is a random folder of songs and doesn’'t enforce this restriction, but even then it may try to group by metadata which may prevent some album grouping.
When you only try to match one song yo are only trying to match a group of one, so ti can always match to album if the song can be found in database.
If you want to temporarily disable this restriction just uncheck **Only allow **
match if all songs i grouping match to one album in Preferences:Remote Correct:Match
But if you care about albums once you have songs sorted you should use sub folder renamer to organize into album folders, most applications work better with albums organized into folders, and then renable this option