I've installed the S3 plugin installed, enabled and have it configured and connected to my bucket. However, in System Settings, in the Attachment Storage settings, I'm only getting the database option in the drop down. S3 doesn't show up as an option. I've tried disabling and then enabling again to see if that makes a difference. I've even tried logging in within an incognito window, just in case something was cached in my browser by chance. I'm thinking I missed a step somewhere in the install/configuration. Any ideas would be greatly appreciated. Thank you!