SD Gundam G Generation Overworld

[Bowseranton]

in SD Gundam G Generation Overworld, when selecting a master unit, the sound is not heard, only the target lock sound can be heard after selecting a master unit, is there a way to fix it? Thank you and this is my first time to play that game, except the player unit will have a select / confirm sound only not the master unit. I also play that game on PPSSPP Gold on IOS, this also applies to PC and Mac, which I also played there.

SD Gundam G Generation Overworld