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By Design



Found in [Package]


Issue ID




“no Burst” and “SubtractTerrainBakerJob” warnings are thrown when reimporting subscenes

Package: Burst


How to reproduce:
1. Open the “NoBurstIssue“ project
2. Open the “Assets/GameProject/Scenes/MainGame.unity” scene
3. Wait until all Background Tasks are completed
4. In the Hierarchy window select the “GeneratedEnvironment” subscene
5. In the Inspector within the “Sub Scene” script Component select the “Reimport All” button then select “Yes”
6. Observe the Console

Expected result: No warnings are thrown
Actual result: Multiple “no Burst” and “SubtractTerrainBakerJob” warnings are thrown

Reproduced with: 1.8.12 (2023.2.7f1, 2023.3.0b4)
Could not test with: 1.8.9 (2022.3.18f1) (Could not resolve compilation errors), 1.8.11 (2021.3.34f1) (Project is using the Entities package which is unsupported)

Reproduced on: Windows 10 (by reporter), Windows 11
Not reproduced on: No other environment tested

  1. Resolution Note:

    I'm going to close this as as-designed, because it is the (current) expected behaviour, for asset import workers to run without Burst compilation. It's an unfortunate limitation that we hope to address in the future.

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