Issue
Unable to open Nintex forms designer from the flexi task action. When clicking on the icon to open Nintex forms designer from the action configuration nothing happens
Resolution
- From Site Settings > Site Features; Deactivate “Nintex Workflow 2013” feature
- From the root site go to site setting and then Site collection features and deactivate all the Nintex Workflow and Forms features
- Now activate the Nintex Workflow features first and then the Nintex Forms features