While I am correctly logged in into the Unreal Engine with Marketplace area .. when I try to login on the Epic Games store area because it asks to login and not recognize that I am already logged in the Unreal Engine area it sends a two-factor authentication code but then it says that it is wrong or expired. When I ask to send another code again it sends the same six numbers.
However this wasn't happening some days ago when I first tried that to take a look at the new store.

EDIT: As of 12-18-18 it is still not working. While I am correctly logged in the Unreal Engine Marketplace when I try to login to the Epic Games Store it asks for a two-factor code and the one sent by email just doesn't work. When I type it in it keeps saying wrong or expired. When is this going to be fixed?