Automatic Close stopped working after upgrade

Automatic Close stopped working after upgrade

Currently running 8.0.0 Build 8017

Requests are set to close after 2 days, however this automatic rule has stopped working .. It seems to have stopped working since upgrading to latest version of ServiceDesk plus.
I've confirmed under 'Request Closing Rules' that the 'Close Requests After' is set to 2 days, however requests that were resolved on Friday (04/11/11) are still sitting at 'Resolved'.
Thanks!
 

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