I tried this with Unity 6.5 and 6.3 and web builds and Windows builds.
Steps to reproduce:
- Create a new Unity 6.3 or 6.5 project.
- Install the latest VNTG package w/ example.
- (Optional) Install TextMeshPro.
- Open the demo scene.
- Place a cube some where near the player, partially in the shadow of a tree.
- Assign the cube the 'SandMat' material.
- Run the game in-editor. Note that the cube will receive shadows (same for the scene view.)
- Build the game for Windows or WebGL and run it.
- Observe that the cube doesn't receive any shadows.
See attached screenshots.
Windows build:

Editor play mode:

Graphics settings:

Quality settings:

SandMat material properties:

Cube properties:

I tried this with Unity 6.5 and 6.3 and web builds and Windows builds.
Steps to reproduce:
See attached screenshots.
Windows build:

Editor play mode:

Graphics settings:

Quality settings:

SandMat material properties:

Cube properties:
