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Fixed in 2020.2.X

Fixed in 2018.4.X, 2019.3.X, 2020.1.X

Votes

1

Found in

2017.4

2018.4

2019.2.14f1

2019.3

2019.3.5f1

2020.1

2020.2

Issue ID

1228147

Regression

Yes

Unity Editor freezes/crashes when opening a specific Scene

Scene Management

-

How to reproduce:
1. Open the attached project
2. Open the Scene labeled "CorpHQ"
3. Wait for the Scene to load

Expected result: Scene is loaded
Actual result: Unity Editor freezes/crashes

Reproducible with: 2017.4.38f1, 2018.4.19f1, 2019.2.14f1, 2019.3.6f1, 2020.1.0b2, 2020.2.0a3
Not reproducible with: 2019.2.13f1

  1. Resolution Note (fix version 2020.2):

    Fixed performance degradation when loading scenes with large amounts of duplicate prefab instance property overrides. Fix available in Unity 2020.2.0a6 and above.

  2. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.0b9

  3. Resolution Note (fix version 2019.3):

    Fixed in 2019.3.12f1

  4. Resolution Note (fix version 2018.4):

    Fixed in Unity 2018.4.23f1

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