Here's an excellent video illustrating why we should all be using Principled BSDF for Glass, at least when it comes to realistic glass refractions in Eevee.

Perhaps this bug has been corrected with the Glass BSDF shader in most recent builds, but I don't see any mention of it in the updates. If anyone finds this issue being addressed, please let me know. Otherwise, it's probably a good idea to stick with Principled shader when recreating glass in Eevee.

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