Register Test Run using Maven, Ant or Gradle

do not add the Register Test Run step in Jenkins
install & configure the Ant/Maven/Gradle/... plug-in in your build script
register the Test Run using the Ant/Maven/Gradle/... plug-in and make sure to pass the Jenkins build id ${BUILD_ID} in the meta data of the Test Run. The Jenkins Plug-in will use this build id to retrieve the results.