How to reproduce:
1. Open the attached “IN-135293” project
2. Open the “OutdoorsScene“
3. In the Hierarchy, click on the Reflection Probe
4. In the Inspector, click “Bake”
5. Observe the crash

Reproducible with: 6000.3.0a3, 6000.3.11f1, 6000.4.0f1, 6000.5.0a9
Not reproducible with: 6000.3.0a2, 6000.0.71f1, 6000.6.0a1 (“Failed to build mask for shadow culler. ErroCode: 3” error occurs instead)

Reproduced on: Windows 11
Not reproduced on: No other environment tested

Note: If the crash does not occur the first time, change Cubemap the in the Inspector of the Reflection Probe and bake again

First few lines of the stack trace:
0x00007FFF85495F2E (Unity) Umbra::QueryExt::queryStaticShadowCasters
0x00007FFF8547EA30 (Unity) UmbraModule::CullShadowCastersWithUmbraThreaded
0x00007FFF82CDBC64 (Unity) CullDirectionalShadowCastersJob
0x00007FFF8312A7A5 (Unity) ujob_execute_job
0x00007FFF831297FB (Unity) lane_guts
0x00007FFF8312CF09 (Unity) worker_thread_routine