This happens when you’re using multiple apps with same server url but only different ports; e.g. when base url of JIRA is https://local.server.com:8080 and base url for confluence is https://local.server.com:8090. To avoid this situation, you need to set context path of the applications to make them unique. The steps to change context path of JIRA are provided on this link. You can follow same steps for other Atlassian apps too.