I am trying to copy a production environment to a sandbox environment. I've gone into Admin Center / Environment and selected New. Entered the new Environment Name, select Type of Sandbox and copy production environment.
After the new sandbox is active, I try to log into it and have consistently received the message below. Selecting Go back home receives the same message.

I have other sandboxes created and they are working properly.
Business Central version: 17.4.21491.21531
Anybody else have this issue?