Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “Assets/BugReport/TestEvent.unity“ Scene
3. Enter the Play Mode
4. Observe the Console window and see the “Receiver1.Test() “ message is displayed
5. Exit the Play Mode
6. Select the “EventSender” GameObject in the Hierarchy window
7. Drag and drop the “Receiver2” GameObject to replace “Receiver1” in the UnityEvent field in the Inspector window
8. Enter the Play Mode
9. Observe the Console and Inspector windows

Expected result: The “Receiver2.Test()” message is displayed, and the event target shows as <TestEventReceiver.Test>
Actual result: No message is displayed, and the event target shows as <Missing GameObject.Test>

Reproducible with: 2022.3.60f1, 6000.0.44f1, 6000.1.0b12, 6000.2.0a8

Reproducible on: Windows 11
Not reproducible on: No other environment tested

Workaround: Select the “No Function” first before reassigning an object, then select the target method again