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Fixed in Unity 2017.1



Found in


Issue ID




Some Asset Bundle components have different m_PathID compared to new Asset Bundle with deleted Library

Asset Bundles



Priority: 2Necessary for shipping a final release


Severity: 3Secondary functionality broken

1. Open project attached(
2. Click "BuildTools/Build/Build AssetBundles for Win64" in the menu to build Asset Bundles.
3. Quit the Unity and Rename the folder of bundles what was build on the previous step.
4. Delete the Library folder and reopen the project.
5. Repeat step 2 and compare "copy_3v3_publish" of both folders.

Expected result: They will be identical.
Actual result: m_PathID is different in some places.

Reproduced on: 5.50f3, 5.5.2p4, 5.5.3f1, 2017.1.0a6.
Works fine on: 5.6.0f3.

Fixed on: 2017.1.0b5, 5.6.1p1 and should also be fixed in 5.5.3p4.

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