Dungeon Difficulty [Fabric] empty chests in structures

[YShadowMY]

Mod Name

Dungeon Difficulty [Fabric]

Mod Homepage

https://www.curseforge.com/minecraft/mc-mods/dungeon-difficulty

Minecraft version

1.20.1

Describe the bug

if chest contain random generated weapon/armor then chest become empty (basically any armor/weapon can't be found)

Steps to reproduce

1. launch the game with connector, FFAPI, dungeon difficulty and dependency projectile damage fabric (https://www.curseforge.com/minecraft/mc-mods/projectile-damage-attribute)
2. go to The End and tp 5-10k blocks and find end city
3. open chests until one of them doesn't open on a first click

Logs

https://gist.github.com/YShadowMY/647a11c5cb00177a3e341f418ac031b0

Additional context

[Server thread/ERROR] [net.minecraft.network.protocol.PacketUtils/]: Failed to handle packet net.minecraft.network.protocol.game.ServerboundUseItemOnPacket@5c951abe, suppressing error
java.lang.UnsupportedOperationException: null