Autocorrect tries to get the best match from Musicbrainz and Discogs unless the Musicbrainz Id, Discogs Release Id are already populated then the song is ignored.
If you have looked up the song on Musicbrainz you should take advantage of Action/Match to Releaase/Match Songs to Specified Musicbrainz Release.
Whereas if you have just corrected some metadata (such as album,artist)
but havent matched to a MusicbrainzId you havent found a match yet as far as jaikoz is concerned, however it will use your new metadata to aid it in getting a good match.
Im interested in why it did a bad match, if you send me your support files together with the details of what the song was and what Musicbrainz Id it incorrectly matched to I’ll delve further.