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Fixed in 2017.3.0f3

Fixed in 5.5.X, 5.6.X, 2017.1.X, 2017.2.X



Found in


Issue ID




Shader in Asset Bundle has different fogMode, gpuProgramID, m_LOD between two builds when Library folder is deleted

Asset Bundles


3 lines are different between two Asset Bundle builds when Library folder is deleted between builds.

Steps to reproduce:
1. Open User's attached project (
2. Menu bar > Assets > Asset bundles > Build My asset bundles
3. Close Unity
4. Inspect “art_static_shader_water” under AssetBundles/AssetBundles. Use WebExtract tool (Unity > Contents > Tools) and then binary2text to generate readable file
5. Save generated .txt file
6. Delete Library folder that is inside Project folder
7. Repeat steps 1-5.
8. Compare 2 different .txt files

Result: two .txt files are different in 3 places only: values of fogMode, gpuProgramID, m_LOD are different.

Reproduced with: 2017.2.0b2, 5.5.4p2.

Note: in this case, it seems like only “art_static_shader_water” was affected.

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