Steps to reproduce:

1. Open the attached project or import the attached .unitypackage (if you choose this then you will have to import all the package dependencies that include Cinemachine, NetCode, URP and Input)
2. Inspect the Assets/ModelPrefabs/Player Prefabs/KartA01.prefab prefab
3. It should show up as a Prefab GameObject with a Renderer and several scripts attached to it, but instead appears as a Default Asset

Expected result: the prefab should be imported correctly after upgrading between versions.

Actual result: the prefab is not imported correctly. It cannot be previewed or loaded as a GameObject via script.

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Note: jumping from a18 to a19 will result in the prefab getting broken upon import. However, starting with a11, the prefab can be broken by removing components from it.

Reproducible with: 2023.1.0a11, 2023.1.0a19, 2023.1.0b1

Not reproducible with: 2023.1.0a10