How to reproduce:
1. Open the "Graphics_Blit_Crash.zip" project
2. Build the Crest/Crest-Examples/Main/Scenes/main.unity" scene
3. Run the build

Actual result: Unity crashes.

Reproducible with:2019.1.1f1, 2019.1.8f1, 2019.2.0b7, 2019.3.0a6.

Notes:
Can't test 2018.4 and earlier versions because Graphics.Blit(Texture source, RenderTexture dest, int sourceDepthSlice, int destDepthSlice) was implemented only in 2019.1.
The crash happens because of code "Graphics.Blit(Texture2D.blackTexture, _targets, -1, lodIdx);" LodDataMgrShadow.cs:186.
The Editor doesn't crash.

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Fixed in 2019.3.0a8, 2019.2.0b9, 2019.1.10f1.