I have been seeing this issue with my workflows. I create a workflow with multiple Flexi tasks. The workflow works properly and everything is fine. One day I open the workflow to make a change and one of the Flexi tasks is now a duplicate of the other one. The original Flexi task is gone and has been replaced with the second one. I have to rebuild the task and sometimes it happens again. I am ready to deploy and the users have performed UAT and now it is broke. HELP!!