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Duplicate
Votes
1
Found in
2019.3
2019.3.0f3
2020.1
Issue ID
1206352
Regression
No
Class constructor is not invoked when adding SerializeReference attribute
How to reproduce:
1. Open the attached project "1206352.zip"
2. Open the SampleScene
3. Select the Container script (Assets -> Runtime -> Container)
4. Reimport the script (right-click -> Reimport)
5. Enter Play mode and notice Default value being logged
6. Exit Play mode and uncomment the [SerializeReference] attribute of the Container script
7. Enter Play mode
Expected result: Default value is logged
Actual result: NullReferenceException is thrown
Reproducible with: 2019.3.0f4, 2020.1.0a18
Notes:
Reimporting the script when [SerializeReference] attribute is uncommented will stop the Item class constructor from being invoked.
Creating a new ScriptableObject (right-click -> Create -> Container) will Invoke the constructor.
[SerializeReference] attribute was not available prior to Unity 2019.3, therefore the issue is not reproducible.
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This is a duplicate of issue #1193322