Unable to resolve vulnerabilities in F5 version 13

I'm trying to resolve vulnerabilities using the API in F5 version 13.0.0. I tried in 13.1.0 as well. I'm unable to resolve vulnerabilities.

https://localhost/mgmt/tm/asm/tasks/resolve-vulnerabilities/

Payload:

{"vulnerabilities": [{"link": "https://localhost/mgmt/tm/asm/policies/lIUzEOjnvbMFP3NA0s1BzQ/vulnerabilities/26bfKAS7YY4J37zy-84V0Q", "resolveType": "automatically-resolvable"}, {"link": "https://localhost/mgmt/tm/asm/policies/lIUzEOjnvbMFP3NA0s1BzQ/vulnerabilities/M4m24RLanRwOWjVBCCpVqQ", "resolveType": "automatically-resolvable"}]}

Response:

{

  "vulnerabilityReferences": [

    {

      "link": "https://localhost/mgmt/tm/asm/policies/lIUzEOjnvbMFP3NA0s1BzQ/vulnerabilities/26bfKAS7YY4J37zy-84V0Q?ver=13.1.0"

    }

  ],

  "status": "NEW",

  "lastUpdateMicros": 1571302900000000,

  "getPreResolveMessages": false,

  "selfLink": "https://localhost/mgmt/tm/asm/tasks/resolve-vulnerabilities/8i_pm-_Bxt9GNDNlGX17hA?ver=13.1.0",

  "kind": "tm:asm:tasks:resolve-vulnerabilities:resolve-vulnerabilities-taskstate",

  "startTime": "2019-10-17T09:01:40Z",

  "stageVulnerabilities": false,

  "id": "8i_pm-_Bxt9GNDNlGX17hA"

}