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Fixed in 2019.3.X

Fixed in 2018.4.X, 2019.1.X, 2019.2.X



Found in



Issue ID




[Improved Prefabs] Editor freezes with the infinite error loop after deleting the prefab with light probes when auto-bake is on

Scene Hierarchy


Exiting Prefab Mode pop up appears along with NullReferenceException on deleting Light Probe prefab from the project view.

Steps to Reproduce:
1. Create a new project.
2. Hierarchy > Create > Light > Light Probe Group
3. Drag and drop Light Probe Group in the project view
4. Open Light Probe Group in Prefab Mode.
5. Delete Light Probe Group prefab from Project view.
6. Select Delete from Delete selected asset popup.

Actual Result:
Exiting Prefab Mode pop up appears along with NullReferenceException and Editor breaks down

Expected Result:
Light Probe prefab gets deleted gracefully.

Refer attached video.

Reproducible on:
2019.3.0a3, 2019.2.0b3, 2019.2.0a12

Not Reproducible on:

Windows and MacOS

- The issue happens only when the auto-baking is enabled in the Lighting window and doesn't happen when manual bake is on.

  1. Resolution Note (fix version 2019.3):

    Prefabs were reloaded after changes on disk. In conjunction with the LightProbeGroupInspector constantly pushing new data to be serialized, this causes an infinite loop.

    This fix resolves both issues.

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