Reproduction steps:
1. Open the “ReproProject“ project
2. Open the “Assets/Scenes/SampleScene“ scene
3. Open the Addressables Groups window
4. Expand the “ExcludedGroup“ and the “IncludedGroup“ groups
5. Collapse the “ExcludedGroup“ and the “IncludedGroup“ groups
6. Reload domain (Tools > Reload Domain)
7. Build the Addressables (Build > New Build > Custom Build Script) in the Addressables Groups window
8. Observe the Console window

Expected result: No errors are thrown in the Console window
Actual result: “NullReferenceException: Object reference not set to an instance of an object“ error is thrown in the Console window

Reproducible with: 1.20.5 (2021.3.38f1), 1.21.20 (2021.3.38f1, 2022.3.28f1, 2023.3.0a15), 2.1.0 (6000.0.2f1)

Reproducible on: Windows 11 Pro (22H2)
Not reproducible on: No other environment tested