When you have two items of same kind you will use left one, even if you press button to specifically use right. In options slots are not properly named as well as they don't use item but slot.
Is this supposed to have such priority? And if yes then we should have buttons to use items not slots. Right now someone not aware might want to throw E dagger and later will be caught off guard when trying to throw Q one.
Egzekutor kept telling me this is intented by Rez, but it is still too confusing for those unaware IMO.
Customer support service by UserEcho