_ What you expected to happen it was that the spawner spawns zombies .
_ What actually happened is that spawned nothing.
1_ Find a MobSpawner
2_ Notice that it don't spawns mobs
Related issues
duplicates
Comments


Even in hard mode, 1.9 Pre-2, Game Mode 1 or 0, spawners not spawning when within range. Tested on naturally generated Spider, Zombie, and Skeleton dungeons as well as "custom" spawner set to blaze in overworld via spawn egg. Windows 10 environment. Is there a game rule that affects these spawns as opposed to natural hostile spawns?
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