Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/Scenes/SampleScene.unity” Scene
3. Right-click in the Project window, and then Create > MonoBehavior Script
4. Before the Scripts recompile, quickly select Canvas > Image in Hierarchy and in Inspector, click Color to open the Color Picker
5. Wait for Scripts to recompile
Expected result: No Errors exist
Actual result: Error “NullReferenceException: Object reference not set to an instance of an object“ is present
Reproducible with: 6000.2.0b2 (d4c40f50eb81), 6000.2.0b3, 6000.3.0a1
Not reproducible with: 2022.3.62f1, 6000.0.49f1, 6000.1.4f1, 6000.2.0b1 (1618a92a88ac)
Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested