How to reproduce:
1. Open the attached “IN-120774” project
2. Enter the “Blockout“ Scene
3. Wait for ~30 seconds
4. Observe the crash

Reproducible with: 6000.1.0a10, 6000.2.12f1, 6000.3.0b10, 6000.4.0a4, 6000.5.0a1
Not reproducible with: 6000.0.621f, 6000.1.0a9

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

Note: The crash can occur more quickly when repeatedly clicking on the Game view window, or, entering and exiting folders in the Project window

First few lines of the stack trace:
0x00007FFB1C9E2498 (Unity) DynamicBranchState::PrepareState
0x00007FFB1CA1288C (Unity) ShaderLab::ShaderState::ApplyShaderState
0x00007FFB1CA023AA (Unity) ShaderLab::Pass::ApplyPass
0x00007FFB1C96BE87 (Unity) ApplyMaterialPass
0x00007FFB1C5EC5C9 (Unity) BatchRenderer::ApplyShaderPass