How to reproduce:
1. Open the user’s attached “My project (49)” project
2. Select the "Assets -> test_psb" file in the Project Browser
3. Click the "Open Sprite Editor" button in the Inspector
Expected result: PSB file is successfully opened in the Sprite Editor with its contents displayed
Actual result: No PSB file content is displayed in the Sprite Editor with NullReferenceException thrown in the Console log
Reproducible with: 4.3.1 (2020.3.43f1), 6.0.7 (2021.3.16f1), 8.0.2 (2022.2.2f1), 9.0.0-pre.1 (2023.1.0a24)
Reproduced on: macOS 13.0 (Intel)
Thrown error:
NullReferenceException: Object reference not set to an instance of an object