How to reproduce:

1. Open the project “IN-103558”
2. Follow the “add a room“ tutorial until step 8/11
3. Observe the error in the console and the inability to click “Next“

Expected result: The "Next" button is active and no error is thrown
Actual result: The "Next" button is inactive, and a runtime error is thrown

Reproducible with: 2022.3.19f1
Not reproducible with: 2021.3.52f1, 2022.3.63f1, 6000.0.51f1, 6000.1.7f1, 6000.2.0b5
Could not test with: 2022.1.0a1 (“add a room“ tutorial not opening)
Fixed in: 2022.3.20f1

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

Notes:
- Issue does not reproduce when downgrading a version
- Error message: {{NullReferenceException: Object reference not set to an instance of an object}}
{{Unity.Tutorials.TutorialCallbacks.ClearAllNavMeshes () (at Assets/FPS/Tutorials/TutorialCallbacks.cs:30)}}