Combining roms doesn't work properly

[Omen]

LB doesn't combine many of my European games with US (ActRaiser 2 on SNES for example), it will combine them with Japanese games, but not US. What make it worse is US games are still combine with Japanese games, so I end up with 2 versions of the game, each with a Japanese copy.

 

EDIT: It does this with every Ninja Turtle game on every platform. Also some games combine but also have a second copy of just the European version. These also have multiple copies of the same game under additional apps, usually multiple copies of the Japanese roms (Blackthorn on SNES for example). It seems to me that there is a very weird bug in the additional apps system.

Edited June 5, 2018 by Omen