How to reproduce:
1. Open the “BugPrefabLiveConversion“ project
2. Open the “SampleScene“
3. In the Hierarchy window, enable the checkbox next to the “Subscene“
4. In the Inspector window open the “TestObject“ GameObject
5. Set the Inspectors data mode to Authoring and lock it
6. Open another Entity Inspector window with the “TestObject“ GameObject
7. Set it to Runtime mode
8. Enter the Play Mode
9. Press 'A' on the keyboard
10. Change the value of the “Value“ property of the “Test Bug Authoring“ component in the Inspector window with the Authoring mode
11. Observe the “Prefab Reference“ value of the “TestBug“ component in the Inspector window with the Runtime mode

Expected result: The “Prefab Reference“ value is set to “TestPrefab“
Actual result: The “Prefab Reference“ value is set to None

Reproducible with: 1.2.0, 1.2.1 (2022.3.30f1, 6000.0.3f1)
Could not test with: 0.51.1-preview.21 (2021.3.38f1) (Could not resolve the Console errors)

Reproducible on: macOS 13.5.2 (Intel), Windows 11 (User’s)
Not reproducible on: No other environments tested

Note: Removing the “Linked Entity Group Authoring“ component from the “TestObject“ GameObject makes the issue not reproducible