The Sonar(-Qube) plugin creates links to the SonarQube project(s) on the SonarQube server on the Jenkins job page SonarRunner was invoked for. In case the project contains multiple (2 in our case) "Invoke standalone Sonar analysis" steps with different "sonar.branch" values, the plugin creates multiple links but all point to the first branch, there is no link for the second branch.