Metahumans 403 even after invite

I still get a 403 error (Frobidden) when I attempt to login to metahumans through the same account that i requested access. I’ve gotten my email granting me hour-based access to the tool but I continue to get this error.

Have tried revoking access and logging back in, and a variety of different ways to access the tool but all lead me to the same error.