Failed to update listener certificate in XMS 10.6

While importing renewed SSL listener certificate on XMS 10.6 following error is observed on XMS debug logs. 2017-06-22T11:47:55.251+0300 | A7B895C5041828EC | INFO | http-nio-14443-exec-7 | com.citrix.controlpoint.rest.CertificateMgmtResource | Uploading certificate to be used As : listener . none...