WebGL Template Thumbnails in Player Settings stop displaying after Building and Running game

Steps to reproduce:

1. Ensure that the Web module is installed on your Unity Version via Unity Hub
2. Open a Unity Project
3. Open Player Settings via Edit > Project Settings > Player
4. Navigate to the Web settings tab
5. Open the dropdown for 'Resolution and Presentation'
6. Observe that under the 'WebGL Template' section, that the templates have visible thumbnails
7. Open Build Profiles Window via File > Build Profiles
8. If it is not already active, select the Web Platform and click 'Switch Platform'
9. Click 'Build And Run'
10. Wait for your project to build and run
11. Reobserve the WebGL Template section in Player Settings

Actual results: The thumbnails on the templates have stopped displaying. You have to restart the Editor for them to display again

Expected results: The thumbnails on the templates still display

Reproducible with versions: 7000.0.0a19, 6000.2.0a3, 6000.1.0b5, 6000.1.0a1

Not reproducible with versions: 6000.0.37f1, 2022.3.58f1, 2021.3.45f1

Can't test with versions: - 

Tested on (OS): Windows 11

Notes: