Shen Chou, is a project manager is an Agile Hybrid team that is using timeboxed iterations to perform its project work. As the team prepares to go to an iteration review with the project stakeholders, a team member tells Shen that they were not able to complete one of the tasks for the iteration due to a problem that appeared a week earlier but could not be resolved. What should Shen do to minimize such an issue from occurring in future iterations