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Fixed in 2018.4

Fixed in 2019.2, 2019.3



Found in






Issue ID




Applying changes to root prefab in a nested prefab re-adds a component earlier removed in another nested prefab

Scene Management


How to reproduce:
1. Open the attached project
2. Open the "SampleScene" scene
3. Remove Mesh Renderer component of Cube > Sphere
4. Apple changes on the Cube prefab
5. Create Capsule GO as children of the Cube
6. Apply changes to the Cube prefab

Actual result: The Sphere's Mesh Renderer component gets added back to the prefab.
Expected result: The Sphere's Mesh Renderer component stays removed.

Reproducible with: 2020.1.0a5, 2019.3.0b4, 2019.2.7f2, 2018.4.10f1.

- Nested prefabs are not implemented in Unity 2017.4.

Fixed in 2020.1.0a19, 2019.3.0f6, 2019.2.19f1, 2018.4.16f1.

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