DownloadLong NBT Killer ModGet the files on 9Minecraft
What the mod changes
Minecraft normally refuses to load a save when it encounters a compound or list NBT tag nested deeper than 512 levels. Instead of throwing an exception and blocking the world from loading, Long NBT Killer Mod replaces that hard failure with a harmless warning written to the log, then lets the game continue.
Why this matters
A compound or list tag that deep is abnormal. Vanilla treats it as a fatal error, which can leave you locked out of a world entirely. This mod keeps the game going so you can still get in and investigate.
What to do after the warning
Check the log for the warning, then open the affected save in an NBT editor to inspect the offending tag. The mod does not fix or remove the abnormal data; it only stops the depth check from blocking the load. Treat the warning as a signal that something in your save needs attention.
