I have a Nintex workflow in SharePoint 2010 onpremise, but I only get errors after a migration to 2013 onpremise and recreation of the workflow. There is a Assign Flexi task that seems to cause the errors, but it is configured exactly like the one in 2010! It is very simple and there is not much room for errors. Has something been changed between Nintex 201 and 2013 regarding the Assign Flexi task that I should be aware of or some bugs? Any help would be appreciated!