Workflow deadline problem

[Morelli, Roberto]

Hello to all,
 
In my workflow I used a deadline "Latest end" .
This deadline works properly:  : if the deadline has been reached, the
workitem disappear from the current user workplace, the workflow stop, and a
mail is sent to the system user.
 
But  I have a strange case. if the user is working with the workitem and the
deadline has been reached, the event is not raise (and never again after
!!!).
 
Do you have any idea?
Thank you
Roberto
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