I experience the same error under Hardy Heron: When the Preferences dialog's File name option is set to "Track Artist (sortable) - Track Title", the actual file names created use the Disc Artist instead of the Track Artist.
I experience the same error under Hardy Heron: When the Preferences dialog's File name option is set to "Track Artist (sortable) - Track Title", the actual file names created use the Disc Artist instead of the Track Artist.