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  1. Minecraft: Java Edition
  2. MC-14826

Leads in unloaded chunks break, become invisible or connect to an invisible target far away

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Minecraft 15w31b, 1.15 Pre-release 1
    • Snapshot 13w17a, Snapshot 13w19a, Snapshot 13w21b, Snapshot 13w22a, Snapshot 13w23a, Snapshot 13w23b, Snapshot 13w24a, Snapshot 13w24b, Snapshot 13w25a, Snapshot 13w25b, Snapshot 13w25c, Snapshot 13w26a, Minecraft 1.6, Minecraft 1.6.1, Minecraft 1.6.2, Minecraft 1.6.4, Minecraft 13w36b, Minecraft 13w37a, Minecraft 13w37b, Minecraft 1.7.2, Minecraft 1.7.4, Minecraft 14w02c, Minecraft 14w03b, Minecraft 14w04a, Minecraft 14w04b, Minecraft 14w05a, Minecraft 14w07a, Minecraft 1.7.5, Minecraft 14w11b, Minecraft 1.7.9, Minecraft 14w20b, Minecraft 14w21a, Minecraft 14w21b, Minecraft 14w25a, Minecraft 14w25b, Minecraft 1.7.10, Minecraft 14w28b, Minecraft 14w31a, Minecraft 14w32d, Minecraft 14w34d, Minecraft 1.8-pre1, Minecraft 1.8-pre3, Minecraft 1.8, Minecraft 1.8.1, Minecraft 1.8.2-pre1, Minecraft 1.8.2-pre2, Minecraft 1.8.2-pre3, Minecraft 1.8.2-pre4, Minecraft 1.8.2-pre5, Minecraft 1.8.2-pre6, Minecraft 1.8.2-pre7, Minecraft 1.8.2, Minecraft 1.8.3, Minecraft 1.8.8, Minecraft 1.8.9, Minecraft 16w04a, Minecraft 16w05a, Minecraft 16w05b, Minecraft 16w06a, Minecraft 1.9 Pre-Release 4, Minecraft 1.9, Minecraft 1.9.2, Minecraft 1.9.4, Minecraft 16w20a, Minecraft 1.10, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w32b, Minecraft 16w33a, Minecraft 16w35a, Minecraft 16w36a, Minecraft 16w38a, Minecraft 16w39a, Minecraft 16w39b, Minecraft 16w39c, Minecraft 16w40a, Minecraft 16w41a, Minecraft 16w42a, Minecraft 16w43a, Minecraft 1.11, Minecraft 1.11.2, Minecraft 17w06a, Minecraft 17w13b, Minecraft 1.12 Pre-Release 7, Minecraft 1.12, Minecraft 1.12.1 Pre-Release 1, Minecraft 1.12.1, Minecraft 1.12.2 Pre-Release 1, Minecraft 1.12.2, Minecraft 18w03b, Minecraft 1.13-pre2, Minecraft 1.13-pre3, Minecraft 1.13-pre5, Minecraft 1.13-pre8, Minecraft 1.13, Minecraft 18w30b, Minecraft 18w31a, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w43b, Minecraft 18w43c, Minecraft 18w44a, Minecraft 18w45a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 19w07a, Minecraft 19w13b, Minecraft 1.14.1, 1.14.4, 19w41a, 19w45b
    • Confirmed
    • Entities
    • Normal

      Since I was given the ticket to this issue, I decided to make some changes to make this report a bit more informative. For full information, see MC-96024. I'm just going to sum it up shortly in this report.

      The bug

      If you connect any animals to a lead, then place the lead on a fence, then go far away from them (Until they become unloaded), then go back, there is going to be most of the times one of these issues occurring:

      1. The lead will simply break and drop as an item on the ground.
      2. The lead will become invisible, sometimes unloading and reloading will fix this issue, sometimes not. If this occurrence happens, the client will think the animal isn't actually leashed, and you can right click it to leash it, however due to this being only client side, you cannot place the lead on a fence.
      3. The leads will glitch out and connect to an invisible target far away (See pictures). Following the lead for a bit of time will fix this, or, in some cases, make occurrence #1 happen.

      I have yet to find a way to, using command blocks, leash the animals back. I'm not exactly sure how the leashing part works technically. It seems like there are two tags for every mob that are related to leads, but all they do is place a lead on the specified location, not connect the animal to it.

      Code analysis

      Code analysis by corosus can be found in this comment.

        1. 2013-06-08_07.54.44.png
          2013-06-08_07.54.44.png
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        2. invisible-invulnerable-lead.mp4
          8.86 MB
        3. 2016-01-23_17.56.36.png
          2016-01-23_17.56.36.png
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        4. 2016-01-23_17.54.13.png
          2016-01-23_17.54.13.png
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        5. 2016-01-23_16.57.54.png
          2016-01-23_16.57.54.png
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        6. 2018-10-31_21.47.52.png
          2018-10-31_21.47.52.png
          1.28 MB

            slicedlime [Mojang] slicedlime
            nghhi_crul Spake Miner
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              Created:
              Updated:
              Resolved:
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