I have tried accessing multiple challenges from the Pega System Architect mission (https://academy.pega.com/mission/system-architect/v3) on both Pega 8.7 Personal Edition and through my Pega Platform (probably 8.7) trial, and it says the login info is invalid in both. For example, I tried logging into the "Manipulating application data" challenge on both editions using username "author@gogoroad" and password "pega123!", and I got the error: "The information you entered was not recognized". Am I using the wrong edition (or version) of Pega to access these challenges? Thanks!