[Belleza hand rigging problems..]

hi everyone!

i was wondering if anyone had any insight as to why i am unable to rig to the belleza hands properly.

i work with many bodies, and i have no problems rigging clothing, shoes, etc to different parts of the body but when it comes to hands, it's always off. this is an example of what happens:

 

it's like...it is rigged but rigged under the hands? i've been avoiding gloves and hand accessories for so long because of it lol. thank you for anyone who has any answers!