[Bug Report] Spawners not working on 1.21.6

Discussion in 'Help & Support / Errors & Bugs' started by cike25, Jul 1, 2025.

  1. cike25

    Mythic ⚔️ I ⚔️ EcoLegend ⛰️⛰️⛰️⛰️ Ex-Mayor ⚒️⚒️ Prestige ⭐ VI ⭐ Premium Upgrade

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    Cike25

    Brief Description:
    Newly placed spawners are borked. Spawners placed before 1.21.6 upgrade still work.

    Instructions:
    1. Place a spawner in an adequate spawning location

    How many times did you recreate this?:
    Many times, with old spawners, new spawners, picked up spawners, etc.
    Tested placing with 1.20.1, 1.21.6, and 1.21.7 clients.

    Result:
    The placed spawner does not have the miniature inside and it do not "activate" to spawn mobs.

    Expected Result:
    Placed spawners has the appropriate miniature inside and spawns mobs.

    Evidence:


    As shown in the 3rd screenshot, there seems to be some data missing from the newly placed spawners. Log block does not indicate the spawner type.
     
    #1 cike25, Jul 1, 2025
    Last edited: Jul 1, 2025
  2. cike25

    Mythic ⚔️ I ⚔️ EcoLegend ⛰️⛰️⛰️⛰️ Ex-Mayor ⚒️⚒️ Prestige ⭐ VI ⭐ Premium Upgrade

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    Placing spawners is working as expected now! Thanks!