Adding databases

I’ve given another wedID permission to manage databases, but they aren’t able to add a mysql database. Specifically, they get a blank screen after they try to add a new db. There’s no “permissions error” screen, simply a blank screen. I told the user to wait a day, just in case, but no dice. Any ideas? Do I need to give this user more permissions than just “manage all current a future databases” and “allow user to manage account”?