what happened to my glass reflection? i am currently following blender guru's beginner tutorial following instructions every step of the way.
as soon as i added the droplet texture at the end of part 5, level 3: condensation, the glass on the cup started acting more like a double sided mirror i went back and checked all my steps and can not fix the issue.
kindly see renders bellow of the renders before and after the droplets were added.
also a PrtScn of the node tree
download blender file here
blender file


node tree
Connect the 'Alpha' output (or even try Color Output alternatively) of your 'image-texture' and connect it to the Alpha 'Input' of the Principled BSDF node.
I will take a look at the file later, if not solved by tomorrow.