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Won't Fix
Votes
0
Found in
2018.4.0f1
2019.1.0b4
2019.1.4f1
2019.2.0a6
2019.3.0a1
Issue ID
1167075
Regression
No
Loading TextMesh Pro prefab from AssetBundle crashes Editor when BuildAssetBundleOptions.DisableWriteTypeTree option is used
How to reproduce:
1. Open attached "project-1167075.zip" project
2. In the Editor select "BuildAB" -> "Build"
3. Enter Play mode
4. Press "LoadAB" button
Expected result: TextMesh Pro prefab is loaded, Editor does not crash
Actual result: Editor crashes
Reproducible with: 2018.4.3f1, 2019.1.9f1, 2019.2.0b8 ,2019.3.0a8
Could not test with: 2017.4.0f1, 2017.4.29f1, 2019.1.0a1, 2019.1.0b3, 2019.2.0a1, 2019.2.0a5 (TextMesh Pro prefab gets corrupted in older than 1.4.0 TextMesh Pro package versions)
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Resolution Note (2020.1.X):
The issue is caused by the user stripping away necessary information for the Serialization System to properly de-serialize the data. TextMeshPro uses Editor only fields which are also serialized. When we try to de-serialize the raw binary data, without the TypeTree information, the serialization system will not know how to map the data correctly, leading to a crash.
The workaround is to write the TypeTree when in Editor.
The fix we have at the moment is to document this behavior.