OCTOBER 14 AND UNTIL NOW, I THINK REFINE EVENT DOESN'T ANYMORE EXIST. BECAUSE I UPGRADED 5 WOE ROBE SET AND 4 HEROIC BACKPACK AND NONE OF THEM GOES TO +7. SPECIALLY HEROIC BACKPACK 3 PCS HEROIC BACKPACK FAILED WHEN GOING TO +5 AND THE OTHER BROKE WHEN GOING +6. I THINK GM OR ADMIN MUST CHECK IT.
I'M NOT THE ONLY ONE EXPERIENCE THIS, EVEN OTHER PLAYERS TOO.