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Hello, I have a TE and I want to show the content of ItemStack Handler on client screen using RenderGameOverlay.Post event. My code is working good, but, when i'm trying to get ItemStackHandler capability, he is empty. All of these slots are empty, even though I put items inside. I think it's a syncing problem between Server and Client. HUDHandler class : package com.zeide.skillsstones.handler; import com.zeide.skillsstones.blocks.tileentities.TileEntityNaturalPedestal; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.ScaledResolution; import net.minecraft.client.renderer.GlStateManager; import net.minecraft.client.renderer.RenderHelper; import net.minecraft.item.ItemStack; import net.minecraft.profiler.Profiler; import net.minecraft.tileentity.TileEntity; import net.minecraft.util.math.RayTraceResult; import net.minecraftforge.client.event.RenderGameOverlayEvent; import net.minecraftforge.fml.common.Mod; import net.minecraftforge.fml.common.eventhandler.SubscribeEvent; import net.minecraftforge.items.CapabilityItemHandler; import net.minecraftforge.items.IItemHandler; import org.lwjgl.opengl.GL11; import java.util.ArrayList; import java.util.List; @Mod.EventBusSubscriber public class HUDHandler { private static void renderItemsInPedestal(ScaledResolution res, TileEntityNaturalPedestal tile) { Minecraft mc = Minecraft.getMinecraft(); Profiler profiler = mc.mcProfiler; profiler.startSection("itemsInPedestal"); int x = res.getScaledWidth() / 2 - 11; int y = res.getScaledHeight() / 2 + 10; GlStateManager.enableBlend(); GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); GlStateManager.color(1F, 1F, 1F, 1F); IItemHandler itemHandler = tile.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, null); List<ItemStack> items = new ArrayList<>(); for(int i=0; i < itemHandler.getSlots(); i++){ if(itemHandler.getStackInSlot(i).isEmpty()) { items.add(itemHandler.getStackInSlot(i)); } } int r = x + ((items.size() * 10) - 10); RenderHelper.enableGUIStandardItemLighting(); for(ItemStack is : items) { mc.getRenderItem().renderItemAndEffectIntoGUI(is, r, y); System.out.println("Itemstack " + is.getDisplayName()); r -= 20; } RenderHelper.disableStandardItemLighting(); GlStateManager.disableLighting(); GlStateManager.disableBlend(); profiler.endSection(); } @SubscribeEvent public static void onDrawScreenPost(RenderGameOverlayEvent.Post event) { if(event.getType() == RenderGameOverlayEvent.ElementType.ALL) { if(Minecraft.getMinecraft().objectMouseOver != null) { RayTraceResult pos = Minecraft.getMinecraft().objectMouseOver; TileEntity tile = pos.typeOfHit == RayTraceResult.Type.BLOCK ? Minecraft.getMinecraft().world.getTileEntity(pos.getBlockPos()) : null; if(tile instanceof TileEntityNaturalPedestal) { renderItemsInPedestal(event.getResolution(), (TileEntityNaturalPedestal) tile); } } } } } Tile Entity class : package com.zeide.skillsstones.blocks.tileentities; import net.minecraft.entity.item.EntityItem; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.network.NetworkManager; import net.minecraft.network.play.server.SPacketUpdateTileEntity; import net.minecraft.tileentity.TileEntity; import net.minecraft.util.EnumFacing; import net.minecraftforge.common.capabilities.Capability; import net.minecraftforge.common.capabilities.ICapabilityProvider; import net.minecraftforge.items.CapabilityItemHandler; import net.minecraftforge.items.ItemStackHandler; import javax.annotation.Nullable; public class TileEntityNaturalPedestal extends TileEntity implements ICapabilityProvider { private ItemStackHandler inventory = new ItemStackHandler(8) { @Override protected void onContentsChanged(int slot) { markDirty(); } }; @Override public void readFromNBT(NBTTagCompound compound) { inventory.deserializeNBT(compound.getCompoundTag("inventory")); super.readFromNBT(compound); } @Override public NBTTagCompound writeToNBT(NBTTagCompound compound) { compound.setTag("inventory", inventory.serializeNBT()); return super.writeToNBT(compound); } @Override public boolean hasCapability(Capability<?> capability, @Nullable EnumFacing facing) { return capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY || super.hasCapability(capability, facing); } @Nullable @Override public <T> T getCapability(Capability<T> capability, @Nullable EnumFacing facing) { return capability == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY ? (T) inventory : super.getCapability(capability, facing); } @Override public NBTTagCompound getUpdateTag() { return this.writeToNBT(new NBTTagCompound()); } @Override public SPacketUpdateTileEntity getUpdatePacket() { return new SPacketUpdateTileEntity(getPos(), 0, writeToNBT(new NBTTagCompound())); } @Override public void onDataPacket(NetworkManager net, SPacketUpdateTileEntity pkt) { setPos(pkt.getPos()); readFromNBT(pkt.getNbtCompound()); } public void collideEntityItem(EntityItem item) { if(checkNextFreeSlot() != 100) { ItemStack copy = item.getItem().copy(); int count = copy.getCount(); if(count <= 1) { item.setDead(); copy.setCount(1); } else { item.getItem().setCount(item.getItem().getCount() - 1); copy.setCount(1); } inventory.insertItem(checkNextFreeSlot(), copy, false); } } public int checkNextFreeSlot() { for(int i=0; i < inventory.getSlots(); i++){ if(inventory.getStackInSlot(i).isEmpty()) { return i; } } return 100; } } Thanks for listening to me. Bye. EDIT: I'm just an idiot i forgot the "!" before itemStackHandler.getStackFromSlot(i).isEmpty()

That's an old version, try a new one. Beyond that try running it from terminal and tell us what it says

Good question!