Seems to be an anomoly within musicbrainz, your link:
https://musicbrainz.org/release/8bb2...b-a7478617b75f
dBpoweramp asks for
GET /ws/2/release/8bb209ee-ea44-49b8-aa6b-a7478617b75f?inc=recordings+discids+artists+labels +artist-credits+isrcs HTTP/1.1
Host: musicbrainz.org
which is:
http://musicbrainz.org/ws/2/release/...-credits+isrcs
which gives:
<recording id="f7148941-5990-4228-af18-43e5b858e118">
<title>Live It Up</title>
<length>240000</length>
<artist-credit>
<name-credit joinphrase=" feat. ">
<artist id="3bd5fb5e-8dd3-4130-be7f-c408a0534f80" type="Person" type-id="b6e035f4-3ce9-331c-97df-83397230b0df">
<name>Classified</name>
<sort-name>Classified</sort-name>
<disambiguation>canadian hip hop</disambiguation>
</artist>
</name-credit>
<name-credit>
<name>Mic Boyd</name>
<artist id="303e75a9-1bb0-4327-8b50-a9f791c69f93" type="Person" type-id="b6e035f4-3ce9-331c-97df-83397230b0df">
<name>Mike Boyd</name>
<sort-name>Boyd, Mike</sort-name>
</artist>
</name-credit>
</artist-credit>
</recording>
as you can see there is mic boyd and Mike boyd, we take the 2nd value with the sort value.