BLM - Refreshing Enochian doesn't reset the timer to 30 seconds

Type of Internet Connection: Cable
Internet Connection Speed: 20Mbit/s
Date & Time: 7/02/2015 @ 11:04 AM GMT
Frequency: Always
Character Name: Grenth Ashwind
Race: Hyur / Midlander / Male
World: Ragnarok
Class/Level: Black Mage 60
Area and Coordinates: N/A
Party or Solo: Solo
NPC Name: N/A
Monster Name: N/A
In-Game Time: 11:04 AM

Using the skill "Enochian" while still under the effect of the Enochian buff will not reset the timer back to 30 seconds.
Because of this, we are forced to wait until the buff timer has run out before reapplying it, delaying our other actions and lowering our dps output.

Edit: Missunderstood.

But it's hard to say if this is a bug. However it's better to use Blizzard IV instead.