I clicked "Launch" for Rainbow Six Siege in Epic Games Launcher and it pops up ubisoft login. After I log in, it displays "An Epic Games service is unavailable at the moment. Please try again later. I noticed in other forums such as For Honor is having the same issues. Fixes
https://imgur.com/Wfbpx5c
Screenshot of what it says.
https://imgur.com/Wfbpx5c
Screenshot of what it says.