Strange sphere in my glass surfaces? I'm using Glass nodes from Blender Gurus tutorial but for some reason I get this strange sphere in all my glass surfaces. If I Enable Backface Culling in material settings, the sphere disappears from Viewport reflections but still shows in final renders.
Here is the node setup and a screenshot of the artifact:


How can I get rid of it?
As Christopher suggested in the comments, this glass hack has too high Fresnel value that is causing the issue. I'll use a different glass node setup.