Unable to Enable Session Affinity for Azure front door premium resource using Azure Reset API

While I'm trying to update the Azure front door premium resource "Session Affinity state" from "Disabled" to "Enabled" using Azure Rest API, I'm getting Response Code: 400 and It says “Session Affinity State cannot be enabled, Please mark it Disabled”.

The below json values passed on the body.

Body:

{

"properties":

    {

      "sessionAffinityState": "Enabled"

    }

}

Can you please help me on this issue ?

Thanks

Raja R