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  1. Minecraft: Java Edition
  2. MC-204801

Large amounts of copper blocks lag the server and causes the worldsave to take forever


    • Icon: Bug Bug
    • Resolution: Fixed
    • 21w05a
    • 20w45a, 20w46a, 20w48a, 20w49a
    • None
    • Confirmed
    • Block states, Performance
    • Important

      The bug

      If you place a large number of copper blocks in the world it causes the game to start lagging and when you attempt to save the world it will take forever. I placed a few cubes of copper in a test world and when I tried to save the world it took 5 minutes and 30 seconds to save.

      This is probably due to copper blocks each scheduling a tile tick that lasts at least 1200000 ticks flooding the tile tick list and causing a lot of issues.

            Unassigned Unassigned
            hilligans Hilligans
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