[Kameron8]

When using Hare Kick or a few other special abilities, Twin Dance will not properly activate. Instead of attacking with your main weapon, then your sub weapon, the attack will take place twice with your main weapon. To replicate:

1. Equip Twin Dance and Verglas. Equip two fist weapons.
2. Go into Hare Stance, use Hare Kick. Conversely, go into Fox Stance, and use Fox Dive. Alternatively, go into Bear Stance and use Bear Palm.
3. Observe that you attack twice with the primary weapon.

I do not have a comprehensive list of what abilities behave in this manner, unfortunately.