Wake Up animation is wrong

The awakening animation is shared with the spell slot that Tapir uses; changing the animation on that slot will also change it when an entity awakens. You either need to move your Aero spell to a different slot, or look in Assassin's C2 disassembly (which can be found on FF6Hacking's wiki) for what animation is called when sleep is cleared.

Use Notepad++ to read it and try searching all for "sleep" and/or "tapir".