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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.

Postponed

Votes

13

Found in

2019.3

2019.3.0b11

2020.1

Issue ID

1199395

Regression

No

Cannot override type of [SerializedReference] fields in prefab instances

Scene Management

-

To reproduce:
1) Open the attached project and scene
2) Select Polymorphic Prefab in the hierarchy
3) Change Derived Class 1 to something else in Inspector
4) Play and stop the scene

Expected: The change persists
Actual: The change reverts back to Derived Class 1

5) Select Prefabs/Polymorphic Prefab Variant in Project View
6) Try changing Derived Class 1 there

Expected: It changes
Actual: It instantly reverts back

Reproduced in 2019.3.0b2, 2020.1.0a2, 2020.1.0a14
Can't test older versions

  1. Resolution Note:

    This is a known limitation due to how modifications are stored on prefab instances. Documentation will be corrected to mention this

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Comments (3)

  1. Ovidiu-Vaduva

    Mar 26, 2020 08:56

    do you have any plan to fix it in a previous unity release?

  2. EngineArtist

    Feb 24, 2020 11:20

    Critical for me too.

  3. jynerso

    Dec 17, 2019 12:48

    ah.. this is critical for me.

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