I've seen this mentioned in other threads (like bar swap delay) but couldn't find a specific thread with this issue. Another outfit system bug.
If I switch to a weapon not in the outfit I'm wearing, my characters hands appear empty in the weapon pose. This also happens with other characters- I see them empty handed or with their fists up as if unarmed.
If I take the weapon off - its fine. I like my outfit, but I'd also like the flexibility to switch weapons. I really hope the answer is not "Make another outfit with that weapon".