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Fixed in 2020.2

Fixed in 2019.3, 2020.1



Found in





Issue ID




Crash on Umbra::TileTraverseTree::init<Umbra::StartCellFinder> when entering Play mode or selecting Camera GameObject



Reproduction steps:
1. Open the attached project ("")
2. Open the "School" Scene
3. Enter Play mode or select "Main Camera" GameObject in the Hierarchy

Reproducible with: 2019.3.0a1, 2019.3.6f1, 2020.1.0b2, 2020.2.0a4
Not reproducible with: 2017.4.38f1, 2018.4.19f1, 2019.2.21f1

First lines of the stacktrace:
0x00007FF6848BC109 (Unity) Umbra::TileTraverseTree::init<Umbra::StartCellFinder>
0x00007FF6848CA346 (Unity) Umbra::PortalCuller::init
0x00007FF6848D0738 (Unity) Umbra::Query::queryPortalVisibility
0x00007FF6848DC848 (Unity) UmbraModule::QueryPortalVisibility
0x00007FF6834D8877 (Unity) QueryPortalVisibilityJob

- The scene in this example contains multiple areas with Occlusion Culling
- In the versions deemed not reproducible "[Physics.PhysX] QuickHullConvexHullLib::findSimplex: Simplex input points appers to be coplanar." error shows up
- Stacktrace usually isn't printed, but before the crash there's always "Assertion failed on expression: 'userId < staticRenderers.size()'"

  1. Response avatar

    Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a8

  2. Response avatar

    Resolution Note (fix version 2020.1):

    Fixed in 2020.1.0b6

  3. Response avatar

    Resolution Note (fix version 2019.3):

    Fixed in 2019.3.10f1

Comments (2)

  1. 272cf9b02f2aa5905e28a187b3159c09?d=mm


    Jul 04, 2020 08:49

    I have not bought such a camera before it. I hope its result will be the best than another camera that is why I have decided to buy this camera from the studio.

  2. 7fb27778d5f5b9d98ee987182b59e6cc?d=mm


    Apr 13, 2020 11:26

    I don't know what it is all about but still it is something related to CRASH ON UMBRA::TILETRAVERSETREE::INIT<UMBRA::STARTCELLFINDER> WHEN ENTERING PLAY MODE OR SELECTING CAMERA GAMEOBJECT. You have to go for now or sooner this week. Maybe if you have any idea about it then let me know what it is.

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