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Fixed in 2021.1.X

Fixed in 2019.4.X, 2020.1.X, 2020.2.X



Found in




Issue ID




Reference to the root prefab child is lost when pressing "Unpack Prefab" on root prefab and entering Play mode

Scene Management


How to reproduce:
1. Open attached project "New Unity" and scene "SampleScene"
2. In Hierarchy window, expand "Root" object and select its child "Nested"
3. In Inspector window, GameObjectReference(Script) -> press on "Part of Root" (this highlights the "Part of Root" in the Hierarchy window)
4. In Hierarchy window, do "Unpack Prefab" for "Root" prefab
5. Enter Play mode
6. Repeat steps 2 and 3

Expected result: the "Part of Root" object in the Hierarchy is selected
Actual result: nothing is being highlighted, double-clicking on the "Part of Root" in the Inspector, opens up "Root" prefab

WorkAround: Apply the reference to prefab after the outer prefab was unpacked (this will not change the asset because the link now points to scene object and preserve the link to scene object).

Reproducible with: 2018.4.28f1, 2019.4.13f1, 2020.1.10f1, 2020.2.0b8, 2021.1.0a1

  1. Resolution Note (fix version 2021.1):

    Fixed in 2021.1.0a4

  2. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0b12

  3. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.14f1

  4. Resolution Note (fix version 2019.4):

    Fixed in 2019.4.16f1

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