Knight: Reflect Shield not working

Skill/Item name (if relevant):
Reflect Shield

Class/Level (if relevant):
Knight 13/15

Party or solo:

Describe the problem:
Reflect shield does not reflect damage, this is apparent as the health bar of the enemy does not move. additionally no damage tool tip is displayed.

What was the expected behavior?:
The enemy to take damage when hitting me.

List the steps that occurred before the problem appeared:

  1. Use Defensive Stance
  2. Get into a battle
  3. Use Annoying Strike
  4. Use Sheild Strike
    5.Use Reflect Shield
  5. Turn away from enemy
  6. Let monster hit you for duration of Reflect shield and observe HP

Can you reproduce the problem?:

Screenshots/Videos (if available):