This affects the zombie horse jockeys, zombie nautilus jockeys and camel husk jockeys.
Reproduce steps
Creating a superflat world.
Zombie horse jockeyminecraft:bedrock,123minecraft:stone,3minecraft:dirt,minecraft:grass_block;minecraft:savanna
Camel husk jockeyminecraft:bedrock,3minecraft:stone,116minecraft:sandstone,8*minecraft:sand;minecraft:desert
Zombie nautilus jockeyminecraft:bedrock,64minecraft:deepslate,5minecraft:stone,5minecraft:dirt,5minecraft:gravel,90*minecraft:water;minecraft:deep_oceanAfter entering the world, use a command to place a spawner.
Zombie horse jockey/setblock ~ ~ ~ spawner{SpawnCount:10,MaxNearbyEntities:15,Delay:1,MaxSpawnDelay:1,SpawnData:{entity:{id:zombie}}} replace
Camel husk jockey/setblock ~ ~ ~ spawner{SpawnCount:10,MaxNearbyEntities:15,Delay:1,MaxSpawnDelay:1,SpawnData:{entity:{id:husk}}} replace
Zombie nautilus jockey/setblock ~ ~ ~ spawner{SpawnCount:10,MaxNearbyEntities:15,Delay:1,MaxSpawnDelay:1,SpawnData:{entity:{id:drowned}}} replaceUse commands to speed up game tick.
/tick rate 150Waiting for the chicken jockey to spawn approximately 3 to 5 times in total.
Noticed that despite having a higher spawn probability, the new jockys were not spawned.
Thank you for your report!
After consideration, the issue is being closed as Working as Intended.
Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.
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