So we are new to Jira and SCRUM, but we have created a few epics, multiple user stories, tasks and run a few sprints.
The question I have is when user stories are deemed complete, and the epic enters a testing phase, potentially a new sprint, how do you handle the situation where the testing phase finds problems with a user story? Do we re-open the user story? do we create tasks to fix the user story? The SCRUM process is flexible and iterative, so how do we track this flexibility?