Reproduction steps:
1. Open the attached “BugRepro” project
2. In the Project Settings window (Edit > Project Settings…), open the Multiplayer Roles category (Multiplayer > Multiplayer Roles)
3. In the Strip Custom Components list, add “TestScript” Component and press “Apply”
4. In the Project window, delete the “Assets/TestScript” Script
5. Repeat step 2 and observe the Multiplayer Roles category

Expected result: All the options in the category are present
Actual result: The category is empty and there are errors logged in the Console

Reproducible with: 0.10.0 (2023.3.0a19), 1.3.0 (6000.0.22f1)
Couldn't test with: 2021.3.44f1, 2022.3.48f1 (The package requires Editor versions 2023.1 or later)

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