We were previously on JIRA 5.2.11 and GreenHopper 6.2.5 when we created a lot of Kanban boards. Then we upgraded GreenHopper to JIRA Agile 6.3.6.1. Then we upgraded JIRA from 5.2.11 to 6.2.7. Now, when I am configuring a Kanban board that is using Simplified Workflow, while in Column Management, I can add new statuses and they appear in the Unmapped Statuses column, but I am unable to drag and drop them to other columns to configure the board. Do you know what is causing this problem? Will updating JIRA Agile from 6.3.6.1 to 6.3.13.1 resolve the problem?