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Fixed in 2021.2.X

Fixed in 2019.4.X, 2020.3.X, 2021.1.X



Found in




Issue ID




Adding and applying new events to a deeper level Prefab when there is an event already corrupts the newly added events

Scene Management


How to reproduce:
1. Open the user's attached "" project
2. Open the "SampleScene" Scene
3. Select the "Button" GameObject in the Hierarchy window
4. Add a different OnClick event in the Inspector window
5. Right-click on the Button Component and apply changes to the "Button" Prefab

Expected result: Different events are applied to the Prefab
Actual result: The same event is applied to the Prefab

Reproducible with: 2018.4.29f1, 2019.4.15f1, 2020.1.14f1, 2020.2.0b12, 2021.1.0a6

- You might need to repeat the 4-5 steps to reproduce the issue (See attached "1292519_repro.mp4" for full repro)

  1. Resolution Note (fix version 2021.2):

    Fixed in: 2021.2.0a6

  2. Resolution Note (fix version 2021.1):

    Fixed in: 2021.1.0b12

  3. Resolution Note (fix version 2020.3):

    Fixed in: 2020.3.4f1

  4. Resolution Note (fix version 2019.4):

    Fixed in: 2019.4.27f1

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