This has to do with a body value/item ID mismatch with the horse body. To fix this on the spawners, you need to specify the correct item ID for the body value you want:
Note that this won't fix any EXISTING horses, but you can manually set the item ID in .props to match the body value if people have bad horses.
- /bodyvalue/200/itemid/16031
- /bodyvalue/204/itemid/16034
- /bodyvalue/226/itemid/16032
- /bodyvalue/228/itemid/16033
Note that this won't fix any EXISTING horses, but you can manually set the item ID in .props to match the body value if people have bad horses.