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Mobs don't spawn next to water streams if the x and z coordinates are negative

Respawning and falling through the world.

Wither Skeletons not spawning in pre-generated fortress

On older worlds, mobs don't spawn.

High altitude mob spawning inconsistencies

Dangerous Spawning

Newly spawned baby animals doesn't move until parent move

spawning in the ground after creating world

Mob cap abnormally low on SMP

Spawn chunks are loaded all the time even in singleplayer

Animal weird spawning

Spawn Ghast in Completely new world

Low Spawning rate of Hostile Mobs in Singleplayer

Overworld mobs spawning when entering the Nether.

Animal spawning

Wither not spawning

Iron golems spawning in slabs, glass, farmland and grass path

Entity Mass Spawning near chunk error

Villager type Villager Never spawns

Client crash when an unknown item or air spawns

mob spawning has broken

Villager Spawn glitch

Giant spawner don't work.

Some issues with the ender dragon portal spawning on an ender dragon death to get back to the overworld from the end

Nether mobs missing [Solved - Not a bug]

All of the animals free animals have disappeared. I have about 17 sheep and 3 pigs in a pen. However I opened the app one morning and there were no free animals.

Custom spawners spawning skeletons/zombies etc sometimes ignore spawning properties and position data and spawn mobs around them

Player spawnpoint used in monster spawning seems to be unaffected by sleeping in bed or /spawnpoint command

Spawning over lava and can not escape before dying