Hey all trailblazers!

Has anyone successfully installed an app from the AppExchange to a sandbox since the trailblazer.me upgrade has changed all their user profiles?  I cannot successfully log into the AppExchange with my sandbox profile, it keeps going to the trailhead account, and not my business sandbox.  I get this authentication error: "Trailblazer.me is updating. When it completes, you can sign up for an account. Hmm, that didn't work. Something went wrong with your login through Salesforce. Please give it another try." In fact every tab I go to in the Salesforce success community asks me to re-login or takes me to a different profile with a different profile picture. I cannot even login successfully using my business user profile to submit a support case! Is there someone who can look into this for me? @* Trailhead Official * @All About AppExchange