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  1. Minecraft: Java Edition
  2. MC-164828

Moving into an unloaded chunk and back into a loaded one has the client allow you to place blocks on yourself.

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    Details

    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: 1.14.4, 19w44a
    • Fix Version/s: None
    • Environment:
      java version "1.8.0_211"
      Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
      Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)
      Microsoft Windows NT Version 10.0.17763.805 (AKA Windows 10)
    • Confirmation Status:
      Unconfirmed
    • Category:
      Hitboxes

      Description

      When going into an unloaded chunk (preferably by flying) and going back into a loaded one, you can place blocks inside yourself.

      Steps to reproduce (Use Windows 10!):

      Press ⊞ (The Windows key) + R.

      Type "resmon" & press enter.

      Run a minecraft server.

      Set your client render distance to 2. (To make it easier to do within the 30s timeout period)

      Join the server.

      OP yourself and fly far away, generating new chunks in a radius of 2.

      Now go into the resource monitor (you just opened by running "resmon")

      Suspend the minecraft server (It's in the right-click menu; You may have to suspend cmd.exe AND java.exe, so I'd recommend multi-selecting by pressing control on the keyboard when selecting)

      Now quickly switch back to your minecraft client and fly into unloaded chunks and back.

      Land somewhere, look straight down, and try to place a block.

      You can do that now, oddly enough.

      (Also, yes this also works without suspending the server completely, a big lag spike also does the trick.)

       

      Tested on:

      1.14.4 (vanilla and custom server)

      19w44a (vanilla server)

       

      P.S. The attachment is filmed on a custom server with only 1 chunk loaded, to make it easier to show.

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            • Assignee:
              Unassigned
              Reporter:
              CenTdemeern1 Timo Herngreen
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              Dates

              • Created:
                Updated: