Reproduction steps:
1. Create a new project
2. Install Entities package in Package Manager (Window > Package Management > Package Manager > Entities)
3. Create > Entities > IComponentData Script
4. Wait for loading to finish and observe the Console

Actual result: “On demand scheduler requested to import while stopped UnityEditor.AssemblyReloadEvents:OnBeforeAssemblyReload ()” error is thrown
Expected result: No errors or warnings are thrown

Reproducible with: 6.5.0 (6000.5.0a6)
Not reproducible with: 1.4.4 (6000.0.66f2, 6000.3.7f1), 6.4.0 (6000.4.0b7), 6.5.0 (6000.5.0a5)

Reproduced on: macOS Sequoia 26.2 (M4)

Notes:

• Issue is only reproducible once in the same project
• Issue is not reproducible consistently
• FAV is in Editor versions