Deleting Tasks

why would it get deleted?  by the user?

It would be deleted by the Site Collection Administrator....user is getting an error when trying to approve the task.  "The Task is currently locked by a running workflow and cannot be edited".  We need to do research on why that is happening, but for an immediate solution, can the task be deleted?

can you replicate on a test item and check?  wouldn't be something I can try on my environment as I can't force that message "The Task is currently locked by a running workflow and cannot be edited"

have you seen this?

https://community.nintex.com/docs/DOC-1256

also a powershell suggestion here https://community.nintex.com/message/28247-error-task-is-currently-locked-by-a-running-workflow-and-cannot-be-edited

Ok, I will give the PS script a try and report back with my results.

If the user is getting an error, try delegating the task to the same user and see if he/she gets a new task and if it errors again.

Powershell did the trick.