TuSKe GUI and glowing item (Glowing state glitch)

[7GrandDadMC]

https://forums.skunity.com/threads/tuske-gui-and-glowing-item.8329/
^See this skUnity forum post for the CODE

I'm making custom achievements with custom GUI for list of achievement.
I made players can claim rewards of unlocking achievement by clicking the icon of the achievement in the list GUI.

The reward-claiming system itself works well but there's one visual problem
In the achievement list GUI,
Achievement icons with rewards available have "glowing" effect for the item (glowing %itemstack%)
Achievement icons with no rewards or with rewards that is already claimed don't have glowing effect

Also the lore changes between rewards-available icons and no-rewards icon.

The lore changing works successfully but even after claiming reward, the icons keep glowing.
When I reload the .sk file, the icon's glowing states will be fixed.

I already tested with placing some debug codes (like send message) and it loaded the correct line.
I think the main glitch is "glowing" state keeps even if the GUI item is changed.

Other Information:
Server Version: Spigot 1.12.2 (Final build)
Skript Version: 2.2-dev37c
Addon for GUI: TuSKe 1.8.3-v2 (aka PikachuPatch)