Reproduction steps:
1. Open the attached file 'TestProject';
2. Open the scene 'Test';
3. Build the scene for standalone platform;
4. Open the built program;

Actual result: the built program does not get the files from Resources folder.
Expected result: the built program should get files from Resources folder.

Note: When the scene is built with checked 'Development Build', an error 'DirectoryNotFoundException' shows up.

Reproduced with: 5.3.5f1, 5.4.2f2, 5.5.0f3, 5.6.0b3.