I don't know if this issue is unique to unit linking, but I think there are some cases when the credits on one album and its reprint should be different.
0100801~2 : G.S.T. -Gust sound team- (Toshiharu Yamanishi, Daisuke Achiwa, Akira Tsuchiya), J.S. Bach, J. Pachelbel
KDSD-10003~4: Toshiharu Yamanishi, Daisuke Achiwa, Akira Tsuchiya, J.S. Bach, J. Pachelbel
Gust seemingly stops using "Gust Soundteam Atelier So-La"
apparently after Atelier Iris. I know one can say it's not a big issue, since a reprint doesn't appear on the discography.