InvalidOperationException error appears when using a custom audio search provider and opening the Search window

Reproduction steps:
1. Open the attached “IN-93481” project
2. Open the Search window (Window → Search → New Window)
3. Observe the Console

Expected result: No errors appear in the Console
Actual result: “InvalidOperationException” error appears in the Console

Reproducible with: 2021.3.48f1, 2022.3.57f1, 6000.0.37f1, 6000.1.0b5, 6000.2.0a2

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

Note: The issue only happens with the custom audio search provider and when there is at least one audio file in the project