Redux - Floating knives?!

Now done correctly! Apologies for the first go around, and hopefully this is correct now. :) I left out my PC specs since it's irrelevant to magic being cast clientside.

Time: 3pm, 7/21/15
Frequency: All the time.
World name: Balmung
Character name: Caelia Silverarch
NPC name: None
Monster name: None
Class/Level: Rogue 10
Party or solo: Solo
In-game time: Always
Area and coordinates: Anywhere - was doing levequests at the time so I was moving a bit around Lower La Noscea, but it can happen anywhere.
Steps:
1. Cross-class Cure from CNJ tree
2. Use it while fighting multiple mobs

This is funny and probably in that "may be working as intended" area, but: I've been leveling up Rogue and have Cure cross-classed in from Conjurer to help with healing just in case a fight goes south for me. Imagine my surprise when I see one of the knives floating as I'm casting!

http://i.imgur.com/a2Nl6Ql.jpg

I know casting Cure on any class unsheathes the weapon, so a workaround on graphical for that might be needed.