Steps to reproduce:
1. Open the attached project
2. Open the Assets/testScene.unity scene
3. Switch platform to Windows Store
4. Build for WSA Universal 10 SDK, Build type - XAML
5. Open Visual Studio solution
6. Deploy on local machine (Debug or Release)
7. Observe the errors in the Output console

Expected result: Errors should not appear in the Output console
Actual result: Errors appear in the Output console

Note:
Not reproducible with Master mode
TrashMetalData trashMetalData = Resources.Load<TrashMetalData>("TrashMetalData"); :10 TestResourceLoader.cs thrown exception

Reproduced with: 5.4.5p1, 5.5.2p4, 5.6.0f2, 2017.1.0a5

Fixed in: 2017.1.0b4
Backported to: 5.6.1p1, 5.5.4p1