How to reproduce:
1. Open attached project with WebGL platform selected
2. Enter Play Mode
3. Hit space to skip to Start screen
4. Hit Start button
5. Observe console
6. Navigate to Assets>Sounds>Asteroids and observe audio files are corrupted
Error:
ArgumentException: Object of type 'UnityEngine.Object' cannot be converted to type 'UnityEngine.AudioClip'.
Reproduced with: 2022.1.0a13, 2021.2.1f1, 2021.1.26f1
Notes: Reproduced with Linux (CentOS7), does not reproduce with MacOS 11.6