This means that the revision that you are viewing is currently only partially deployed and is an inconsistent state.
The following API call should give you whether the deployment of the apiproxy is correct or not. It also gives you the list of revisions of that proxy that has been deployed and shows on what all environments which all revisions of that proxy is deployed.
On Cloud :
GET "https://api.enterprise.apigee.com/v1/o/{org}/apis/{apiproxy}/deployments" -u <orgadmin-creds>
On OPDK :
GET "http://{management-server-hostname-or-IP}:{port}/v1/o/{org}/apis/{apiproxy}/deployments" -u <orgadmin-creds>