Reproduction steps:
1. Create a new 3D project
2. Switch Platform to Universal Windows Platform
3. Build Universal Windows Platform Application inside the project folder
4. Close the Unity Editor
5. Move the project into a new folder (ex: D:\project to D:\NewFolder\project)
6. Open project in the Unity editor
7. Check the Console window

Expected result: WSATestCertificate doesn't cause errors
Actual result: WSATestCertificate causes errors

Reproducible with: 2019.4.31f1, 2020.3.19f1, 2021.1.22f1, 2021.2.0b12, 2022.1.0a10

Error: Please move 'D:\1361792\Assets\WSATestCertificate.pfx' certificate inside a project, certificate path changed to Assets/WSATestCertificate.pfx

Update:

Error is innocuous and doesn't prevent building UWP app; it can be "cleared" from the output console. There doesn't appear to be any real consequences from this error so long as a valid certificate file is within the project's Assets directory.

Building for UWP will update the path in PlayerSettings to the new path so the error won't appear again when re-opening the project.