I am also having the same issue. I was able to get it the first time in another course, but nothing after that. I am currently working on Pega Customer Service Essentials, but I also had this issue in other courses.
I am also facing same issue. Cloud instance not loading when I "Request Cloud Instance". It has been like this since last 24 hours. I am currently trying to access the exercises in Pega Decisioning Consultant ver 8 module. Can you please help fix it ASAP ?