Hi,
I have noticed, that the filter options don't work for combined roms.
For example, I have a full set and my native language is german, but I prefer to play the English NTSC Version of the most games.
But sometimes I want to play some games from german region, to play with friends or with children, etc...
The problem is, if I combine my full set, then the clones from all other regions, beside the main region, will not recognized by the filter.
I think most filter aren't a big problem, because stuff like genre, controller support shouldn't differ from clones.
But the region is something different. So if you have full combined set, the region filter is "broken", because it will not filter the "combined clones".
I don't know if this is a bug, but it breaks a function, if you use the function to combine roms.
I think nobody had thought about it, as the feature to combine rom sets was added into launchbox.