Network Failure on SES Identities Web Interface

I am receiving a Network Failure error when trying to access SES Identities via the AWS web interface. The following URL gives me the network error:

https://us-east-1.console.aws.amazon.com/ses/home?region=us-east-1#/identities

Based on the console log, it appears to be a CORS error. Here is an error message from the console log:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://email.us-east-1.amazonaws.com/v2/email/identities?PageSize=1000. (Reason: CORS request did not succeed). Status code: (null).

I have tried multiple browsers (Firefox, Chrome and Safari). I have cleared my cookies and cache. I have even tried disabling CORS with a browser plugin. Nothing works. I am able to access Identities in us-east-2, so the problem seems unique to us-east-1.

However, I need to be able to work with SES in us-east-1 because that is where our account is set up.