Error saving bucket — Error Getting Bucket Region

I have three sites — two dev sites and one fresh WP install — all fail to connect to my bucket when I manually enter the bucket name.

Plugin error:

Error saving bucket — Error Getting Bucket Region —There was an error attempting to get the region of the bucket trnn-wordpress-media: Access Denied

Logfile:

[01-May-2016 02:06:11 UTC] WPOS3: There was an error attempting to get the region of the bucket trnn-wordpress-media: Access Denied

The keys and bucket name are all correct as I can use s3cmd to list, get, put, and del files on the bucket.

S3 permissions are:

<blockquote>
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:CreateBucket",
                "s3:DeleteObject",
                "s3:Put*",
                "s3:Get*",
                "s3:List*"
            ],
            "Resource": [
                "arn:aws:s3:::trnn-wordpress-media", "arn:aws:s3:::trnn-wordpress-media/*"
            ]
        }
    ]
}
</blockquote>

Diagnostics:

site_url(): http://wordpress.local
home_url(): http://wordpress.local
Database Name: wordpress_test
Table Prefix: wp_
WordPress: 4.5.1
Web Server: Apache
PHP: 5.6.10
MySQL: 5.5.42
ext/mysqli: yes
PHP Memory Limit: 256M
WP Memory Limit: 40M
Blocked External HTTP Requests: None
WP Locale: en_US
Organize uploads by month/year: Enabled
WP_DEBUG: No
WP_DEBUG_LOG: No
WP_DEBUG_DISPLAY: Yes
SCRIPT_DEBUG: No
WP Max Upload Size: 32 MB
PHP Time Limit: 30
PHP Error Log: /Applications/MAMP/logs/php_error.log
WP Cron: Enabled
fsockopen: Enabled
OpenSSL: OpenSSL 0.9.8r 8 Feb 2011
cURL: Enabled
Zlib Compression: Enabled
PHP GD: bundled (2.1.0 compatible)
Imagick: Disabled

Media Files: 0
Media Files on S3: 0
Number of Image Sizes: 5

Names and Dimensions of Image Sizes:
thumbnail (150×150)
medium (300×300)
large (1024×1024)
post-thumbnail (none)

WP_CONTENT_DIR: /Users/slam_13/sites/wordpress/wp-content
WP_CONTENT_URL: http://wordpress.local/wp-content
UPLOADS: Not defined
WP_PLUGIN_DIR: /Users/slam_13/sites/wordpress/wp-content/plugins
WP_PLUGIN_URL: http://wordpress.local/wp-content/plugins

AWS_USE_EC2_IAM_ROLE: Not defined
AS3CF_BUCKET: Not defined
AS3CF_ASSETS_BUCKET: Not defined
AS3CF_REGION: Not defined

Bucket:
Region:
Copy Files to S3: Off
Rewrite File URLs: Off

URL Preview: http://s3.amazonaws.com//wp‑content/uploads/2016/05/01022900/photo.jpg

Domain: path
Enable Path: On
Custom Path: wp-content/uploads/
Use Year/Month: On
SSL: request
Remove Files From Server: Off
Object Versioning: On

Active Theme Name: Twenty Fifteen
Active Theme Folder: twentyfifteen

Active Plugins:
Amazon Web Services (v0.3.5) by Delicious Brains
WP Offload S3 Lite (v1.0.3) by Delicious Brains

https://ww.wp.xz.cn/plugins/amazon-s3-and-cloudfront/