Question Posing presets

[VamBam]

I noticed when I save a pose in posing presets instead of save pose it doesn't save my hand posing (fingers grasp etc). I checked if the hand 'morph' was a pose or a morph but it's definetely a (hand)pose. Why is this? I found out that I can do it with general presets though, but it seems weird to me. Am I doing something wrong or is this a bug or does if have some kind of explanation?