Skript Version: 2.5.3
Server Version: 1.16.5
Problem Code:

Code (Text):

1. function fill(user:player, slots:number, filler:item = gray stained glass pane):
2.         set name of {_filler} to " "
3.         set {_i} to 0
4.         while {_i} is less than {_slots}:
5.                 format slot {_i} of {_user} with {_filler} to be unstealable
6.                 add 1 to {_i}
7.  
8. command /questlog <text="none">:
9.         aliases: /quests
10.         permission: skript.rpg.questlog
11.         trigger:
12.                 wait 0.1 seconds
13.                 if arg-1 is "none":
14.                         open chest with 3 rows named "Quest Log" to player
15.                         fill(player, 27)
16.  
17.                         set {_abyss faction} to an eye of ender named "&8[&2Abyss Faction&8]"
18.                         set the 1st line of lore of {_abyss faction} to "&7Information about standing and quests"
19.                         set the 2nd line of lore of {_abyss faction} to "&7completed for the Abyss faction."
20.  
21.                         set {_elemental faction} to blaze powder named "&8[&2Elemental Faction&8]"
22.                         set the 1st line of lore of {_elemental faction} to "&4Coming soon."
23.  
24.                         format slot 10 of player with {_abyss faction} to close then run [execute player command "/questlog abyss"]
25.                         set slot 12 of player's current inventory to {_elemental faction}
26.  
27.                 else if arg-1 is "abyss":
28.                         open chest with 3 rows named "Abyss Faction" to player
29.                         fill(player, 27)
30.  
31.                         set {_reputation} to a emerald named "&8[&dReputation&8]&7 %{rpg.%uuid of player%.abyss.reputation}%"
32.                         set {_go back} to a arrow named "&8<- &7Go Back"
33.  
34.                         set slot 22 of player's current inventory to {_reputation}
35.                         format slot 26 of player with {_go back} to close then run [execute player command "/questlog"]
36.                 else:
37.                         send "unkown param" to player

Problem Behavior: No errors but when opening a second UI from the first, either main -> Abyss Faction or Abyss Faction -> main the items are stealable despite using the same fill() function. The first opened section the items are correctly not stealable.
Addons: SkQuery 4.1.3
Troubleshooting: I've tried commenting out all lines except fill(player,27) under the abyss faction to the same result as well as adding a separate function to run through and lock all the items after fill() runs which resulted in the same behavior.
Docs?: There is a little information on format gui from SkUnity and SkriptHub but nothing specific on stealable which I believe my issue here is with.
Have you searched the forums?: A little bit. Most solutions involve switching off of SkQuery to Tusuke because 'GUI's are buggy in SkQuery' but I'm not sure if this will cause issues with existing code.

--- Double Post Merged, May 19, 2021, Original Post Date: May 19, 2021 ---

--- Double Post Merged, May 19, 2021 ---

Wish I could delete this forum post now :? Anyways Skript is not all powerful... don't send it a ton of things to do 0.1 seconds after one another. Without a delay the UI fails to open at all so idk why it surprised me having a really low delay would cause other issues. For now a 0.5 second delay causes things to behave as intended now I'm going to test if a lower delay works.