I'm in a weird situation and hoping someone can assist. Our locally hosted Vcenter uses Microsoft SSO (Azure AD) fo authentication. It's been working fine for years. Suddenly, last night, I am unable to sign in because instead of Microsoft, the authentication is redirecting to Workspace One, where I receive the following notice:

For the life of me I cannot understand what happened. To my knowledge (and I am the administrator of said system), there have been no changes made recently that would affect this interaction. We don't even use Workspace One. If anyone has any idea I'm all ears. Luckily I can still get in with explicit credentials. Thanks!