In earlier version of Jaikoz new releases in MB, which were not jet syncronised with the albunack database, could be matched.
I know, there was a part of the program, that a track/release, which was not matched with a track/release in the albunack server, made a lookup in MusicBrainz to find the track/release there.
This is not possible anymore with Jaikoz 9.41. Just tested it with Jailoz 7.1.1.