Zoom Workspaces - unable to get QR codes

When attempting to retrieve workspace QR codes, I receive the following response:

{
“code”: 4711,
“message”: “Invalid access token, does not contain scopes:.”
}

I have validated that my scopes on my S2S Oauth app contain workspace:read:qr:admin and workspace:read:admin. Any ideas on what I may be missing? To just make sure I am not missing some other undocumented scope, my testing app literally has every scope available.

Retrieving workspace information is not an issue, only when attempting to get the QR codes. I am using GET/workspaces/{workspaceId}/qr_code in my testing.