Presets- Bug or are they meant to be useless?

I’d like answer from some GM or CM because it really doesn’t make sense to me.

I don’t understand something about presets. if it’s a bug or what. Why do items out of the preset i am using go back in the inventory? This thing alone makes the presets unusable. Why are they even a thing if they are supposed to “work” this way? I’m buzzed.