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In Minecraft, items of the same type (like Diamonds or Cobblestone) are expected to stack up to 64. However, the game tracks specific metadata called data. When you rename an item in an anvil, the game adds two pieces of data: display.Name : The new custom name.

Even if two items have the same custom name, they might have different RepairCost values if one was used in an anvil more times than the other. 2. Using the Grindstone

To "reset" an item so it can stack again, you can use a : 125046

Placing a renamed item in a Grindstone will remove the custom name. : This also removes enchantments.

The bug occurs because the game applies a RepairCost tag even if the item hasn't been repaired, just renamed. Since the game only stacks items with identical NBT data, a renamed item (with RepairCost: 0 or higher) will not stack with a standard item (which has no tag at all). How to Manage Renamed Items In Minecraft, items of the same type (like

Using in Creative Mode to manually fix item tags Minecraft Snapshot 23w33a

If you are struggling with items that won't stack due to this bug, follow these steps: 1. Identify the Mismatch Check if your items have different metadata: Standard items have no special tags. Renamed items will show their name in italics. Even if two items have the same custom

: If your sorter is set to look for "clean" items, renamed items will bypass the filter and end up in the overflow chest.