You might have to choose a different ISO driver, I don't know which one you should choose but I think the Sony NPsomething is the one I've heard recommended most often.
the sonyNP driver usually fails, the inferno one is the best to use for psp games (it is compatable with all games),
whereas the sonyNP one has comPat issues.
Probably Inferno - it is NP9660 that fails (when using forwarders) on multi-executable games, iirc
in adrenaline mode, all games work perfectly using the inferno driver 100%,
at least all the ones I use that is.
since I'm making forwarder Bubbles of PSP/PSX games (shortcuts),
& each game is in it's own bubble, the settings for it are unique for that bubble (game) only,
so if I change the driver setting for the Game "Ys I & II" to sonyNP,
it'll make the driver change for THAT game only?
also, to answer my issue with YS I/II PSP not loading from fowarder:
https://gbatemp.net/threads/midway-arcade-treasures-extended-play-adrenaline-bubbles-manager.515642/
I think this might solve my issue for this certain game?
the game in adrenlenine mode when booted works and load up fine using the inferno driver,
but does not when booting it up from forwarder mode.
I'll try and load all my psp games in forwarder mode to see if they all load up fine,
YS III (oath in felgana) loads up fine in this mode (inferno driver).
I'll test all my psp & psx games in forwarder mode and build a comparably list.
thanx for the tips & helps, guys