OK I was able to get this to work finally!! I just had to follow this guide.

I just updated the Bucker police to the one mentioned in the guide and updated my IAM role to the following:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "chime:*",
                "s3:GetBucketPolicy",
                "s3:GetBucketLocation"
            ],
            "Resource": "*"
        }
    ]
}