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Fixed in 2020.1
[Improved Prefabs] Assertion failed on expression: 'modifications.empty exception is thrown on creating prefab variant
Assertion failed on expression: 'modifications.empty exception is thrown on creating prefab variant.
Steps to repro:
1. Open the attached project.
2. Select Cube prefab in the project view.
3. Right Click > Create > Prefab Variant.
The exception is thrown in the console.
Prefab variant creates.
Working Fine in:
Windows & Mac.
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