Harpies in D&D are humanoids with bird features. They have arms and wings as seen on the picture below.
But there's also another version of harpies, one where they have wings instead of arms (or rather their arms are wings), as seen on the pic below.
Assuming that the second harpy version's wings are hands as well as wings (so they can hold stuff and wield weapons and cast spells, etc.), are there any other possible issues with any rules?
I guess they wouldn't be able to hold stuff (or at least use it) while flying. Would that be all?