Ammo/attachments disappearing

Hello all,

I am new to rust server management and I have found an issue on my server.  When ever a player loots a weapon/has an attachment and moves the weapon to another slot in their inventory it automatically unloads the gun/takes off the attachements and if their inventory is full said ammo/attachements disappear.  I am unsure what is causing this and was wondering if anyone could assist me.  The plugins I have installed are:
-BetterLoot
-BlueprintManager
-BuildingWorkbench
-Furnace Splitter
-QuickSmelt
-GatherManager
-Instantcraft
-Timeofday
-RecyclerSpeed
-StackSizeController
-Unburnable meat

Any assistance would be greatly appreciated!

That's a bug in Stack Size Controller. See that plugin's help section which had various threads about it.

Yessir after digging into the forums more I found out that was the issue. Thank you for your response!