I need help，About custom item and WatchWorldState function

[Omicon]

    inst:WatchWorldState("startday", function ()
        isnight = false
        auto_light(inst,inst.components.inventoryitem.owner)
    end)
    inst:WatchWorldState("startdusk", function ()
        isnight = true
        auto_light(inst,inst.components.inventoryitem.owner)
    end)
    inst:WatchWorldState("startnight",function ()
        isnight = true
        auto_light(inst,inst.components.inventoryitem.owner)

    end)

The code is okay，but if I add the cave ，game crash and force close，whyyyyy

The code located in prefabs file, which is custom item. 

Edited April 6, 2025 by Omicon

[Merkyrrie]

Generally when the game only crashes after adding caves, it suggests the mod is trying to do something client-side that should be done only on the server-side. This is because you are technically aren't a client when the world doesn't have caves, so for the person hosting the world specifically it doesn't care about the difference between client and server, but with caves enabled the host of the world becomes a client too. I would have to see the entire code to tell exactly what that is, but if its crashing from your custom item its possible that you have something above this line that in your item's main function that should be below:

inst.entity:SetPristine()
    if not TheWorld.ismastersim then
        return inst
    end

Does the game still crash if you remove the WatchWorldState code specifically?