Error Code 214 - Unable to access Orchestrator tenancy

An Orchestrator cloud instance was set up for my team. The admin made me an organization admin and sent me invite to the instance. All my access rights are the highest they can be. I followed the link from my email and logged into cloud, but when I click on the Orchestrator service, I get:

You don’t have permissions to access Orchestrator in this tenant. Contact your administrator to request access. (#214)”

For other uses that he has invited, he sees a log message indicating they’ve been provisioned in Orchestrator, but not with me.

Any idea how to fix this?

SOLVED: Apparently when inviting users (specifically Active Directory users in this case), Orchestrator is heavily case sensitive.