I’m trying to validate a twitter card for a client’s website, and I’ve done so successfully dozens of times. This is the first time I’ve encountered the new interface, and every time I try to submit the request, it gives me a failure notice saying:
ERROR: __ and __ are not valid screenName. The blanks refer to the client’s username. I’d rather not post it publicly - if there’s an admin I can PM I’ll gladly provide the username to have it whitelisted.
Is this a bug with the new interface, or am I doing something wrong? Do I need to be authenticated with the username I’m trying to associate the website’s card with?
The card type I selected is summary with a large image.