Bluetooth gamepad mapping difficulties

[Jormu]

Hello. I just started playing Castlevania Order of Ecclesia and encountered problem with bluetooth gamepad mapping. If I map X,Y, B, A I can't map R - it won't react to pressing it, but L instead of it can be used. If I skip it I can proceed mapping others without problems. When during mapping R is skipped in game works as Y. If during mapping skip X,Y, B, A then both R and L can be mapped. Atm I can only have working R as L, X,Y, B, A and D-pad. I'm using LG G3 with Android 6.0 and Bluetooth gamepad Defender mobile master.