Armorer cross skill "Piece by Piece" not working correctly

Date & Time:12-31-15

Frequency:Always

World:Leviathan

Character Name:Joh Kehr

Retainer Name:None

NPC Name:None

Monster Name:None

Class/Level:Goldsmith/60


Party or Solo:Solo

Race:Auh Rah


In-Game Time:4:33 am


Area and Coordinates:NA


Housing:lavender beds ward 4 plot 4


Steps:
Detailed steps on how the issue occurred.
I was Crafting a "Aurum Regis cylinder" i used piece by piece the difficulty being 919 my progress is supposed to go up a third which would be 306 but instead it only increased to 303.