I have an approval workflow, which sends and email to the person it is assigned to.
The user opens the email through Outlook 2010 and processes their task (approve, reject or reassign task).
After completing their task Outlook return an error message
This task could not be updated at this time."
However the item does complete its process on the server side.
Users do have the proper permission to access the task and this issue happens from time to time.