Issue Summary Company managed Project : 'Start Sprint' button goes missing when parallel sprint is disabled Steps to Reproduce Create a few JIRA tickets and then assign them to 3 sprints. Start the 1st sprint. Disable parallel sprint in JIRA Software Configuration Go back to the backlog, the button will be missing. The sprint result should be greyed out or throw some error its disappears The below exception is thrown in: Workaround Enable parallel sprints on https://<Instance>.atlassian.net/jira/settings/products/jira-software-configuration Start the Sprint Disable the parallel sprints on https://<Instance>.atlassian.net/jira/settings/products/jira-software-configuration