can't get in to Azure Mgmt in web or PS

From @dtotheoh via Twitter:

can't get in to Azure Mgmt in web or PS "A security token validation error occurred for the received JWT token."(PS)

I'm not using VS to access Azure, this is directly from PowerShell, accessing from web gives me issueType=StsCertificate in URL

Twitter link:  https://twitter.com/dtotheoh/status/639382629352099840

Thanks,

@AzureSupport