Thin Translucency colour tint not working

I took the master tinted glass from the auto pack and created an instance adding in the thin translucent node and changing the shading model to thin translucent and it works perfectly when viewing the material and when looking at a static mesh with the shader applied. However in my working viewport it just looks like transparent glass with no tint no matter what I change. It should look like the second screenshot above, but in my main viewport just looks like the top screenshot.