S3/No buckets showing Done this a couple of times before so not sure what's going on, but I'm trying to hook up S3. I have the bucket/group/policy/user all setup. But when I enter Access key ID and Secret access key in Craft and refresh, no buckets show up. No errors, just no bucket. My policy looks like this:

{
"Version": "2012-10-17",
"Statement": [
    {
        "Effect": "Allow",
        "Action": [
            "s3:ListAllMyBuckets"
        ],
        "Resource": "arn:aws:s3:::"
    },
    {
        "Effect": "Allow",
        "Action": [
            "s3:*"
        ],
        "Resource": [
            "arn:aws:s3:::bucketname/*"
        ]
    },
    {
        "Effect": "Allow",
        "Action": [
            "s3:GetBucketLocation",
            "s3:ListBucket"
        ],
        "Resource": [
            "arn:aws:s3:::bucketname"
        ]
    }
]


}

If it matters, my bucket resides in London. Any help much appreciated.
This happened to me and London is relatively new and unsupported at one point, try changing the location to Oregon to see if this works