How to reproduce:
1. Unzip “IN-150686.zip” Project
2. Run the Project with this Command Line Argument “-batchmode -quit -projectPath <ProjectPath> -executeMethod ReproInstanceId.Run -logFile <ProjectPath + /Editor.log>
3. Open the Editor.log and observe the logged messages
Actual result: “Resources.InstanceIDToOBject / InstanceIDIsValid threw NotImplementedException” messages are logged
Expected result: NotImplementedException is not thrown
Reproducible with: 6000.7.0b1, 6000.6.2f1, 6000.6.0a6
Not reproducible with: 6000.3.24f1, 6000.6.0a5
Couldn’t test with: 6000.0.84f1 (Migrated GetInstanceID code)
Reproducible on: macOS 26.6.2 (M3 Pro), macOS 26.5.2 (M5) (user’s)
Not reproducible on: No other environment tested