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Fixed in 2022.1.X



Found in





Issue ID




Prefab Variant Child has a lower Index than a Prefab Child when editing a Prefab while Prefab Variant is not in the Project

Scene Management


Steps to reproduce:
1. Open the attached Project "case_1127653"
2. Navigate to Project -> Assets
3. Create a Variant of a "Base Prefab" with coloured Image as a child
4. Move the Prefab Variant out of the Project
5. Add a child to the "Base Prefab" that has a coloured image
6. Move the Prefab Variant back to the Project
7. Open the Prefab Variant
8. Notice how the Child of the Prefab Variant has a lower sibling index compared to Original Prefab child

Expected results: Variant of a Prefab has the highest sibling index
Actual results: Child of the Original Prefab has the highest sibling index

Reproducible with: 2018.3.0a6, 2018.3.7f1, 2019.1.0b4, 2019.2.0a6

Note: Improved Prefabs appeared in 2018.3.0a6

  1. Resolution Note (fix version 2022.1):

    GameObjects added to a prefab instance, which are added after the prefab's children, will remain after the prefab's children even after new children are added to the prefab

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