So in videos of other folk playing the game, I clearly see that the glass refracts like it's supposed to. But when I play, the game seems to only use the backup texture. [(clicky)](https://38.media.tumblr.com/bab0730e6714c7de4082a17058a8c471/tumblr_ng72vzIBDX1rggdyko1_1280.png "")
I've tried using my own refracting textures to see what it'd do, and it only reflects. That and it isn't see-through.
Is there a way to fix this?