New Rabbit models are not showing but the old rabbit models

In the new or old Minecraft world, the new models for the babies are working fine but the new rabbit models are not showing for unknown reason in both Cherry Blossom, Meadow and Snow Biome. I’ve try to make a new world hoping it was just a small bug that can be fix by going on a new version world, old rabbit models are still showing. Then, I went into a new creative mode world to see if it going to show the old rabbit models will still show when using a spawn egg… new rabbits models are now showing.

Expected results:

All new models should be showing in both old and new creative or survival world, when created before or after.

Actual results:

Rabbit models have not change in both new and old survival world but change in the a new and old creative world when summon.

How to Reproduce:

1. Create a New survival world.

2. Find a Cherry Blossom, Meadow or Snow Biome.

3. Wait for the Rabbit to spawn in.

4. When Rabbit spawns in, go into creative mode.

5. When in creative mode, use spawn egg to spawn in the Rabbit.

6. After spawning in the Rabbit with the spawn egg, it show the new Rabbit model instead of the old model.

While a small bug, this does have some affects to the gameplay when creating a new world that isn’t creative mode.