Unreal Engine 4.27 Raytracing Glass issues

Hey all, been following along with william faucher’s recent tutorial on raytracing glass and thought I’d give it a crack. Came across this weird issue where looking through glass gets rid of any lighting/shadowing on the other side of the material. I’ve attached my material settings as well as the post-process volume settings. Any help would be appreciated!

Here’s a video of the problem: