Donkey Dupe not working on 1.16.5

[tomiiiiiiiii]

Plugins: 2b2tHelp*, AnarchyExploitFixes*, antiRedstoneClock, AuthMe, DeathMessages, ExploitFixer, GoldenDupes, HamsterAPI, Insights, LeeesNC, LuckPerms, NoCheatPlus, PistonChat, PistonMOTD, PlaceholderAPI, ProtocolLib, RestartPlugin*, SkinsRestorer, spark, TAB, ViaBackwards, ViaVersion, WorldEdit, Worldstats* (disabled every dupe fix from AnarchyExploitFixes, not working)

Server Software: Airplane 1.16.5 (latest build)
Using the latest version of the plugin.

Plugin config: https://pastebin.com/ZbRDxPB9

Issue:
After the player disconnecting, a chest interface appears but there are no items.

[Ivan8or]

can you try it with paper, and also send the full console log for both paper and airplane

[tomiiiiiiiii]

Tested the dupe on paper, it doesn't work. Crafting Table dupe works perfectly.
Airplane Logs: https://pastebin.com/0hms265W
Paper logs: https://pastebin.com/wDjTqewQ

[Ivan8or]

i'll do some testing later tonight, look forward to some results by 12 am EST