Okay this appears to be an issue with DPL 9.2 P2 as well, so I'll post another discussion in the EPO server discussion as well...
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Issue was with the McAfee Agent, after raising a support request and the issue being replicated....
McAfee Agent 4.8.0 Patch 1 is now available. For a full list of changes, see the Release Notes in PD24568: https://kc.mcafee.com/corporate/index?page=content&id=PD24568
Item 16 in Resolved Issues refers to the issues with Restart Notifications being displayed when the policy is set not too. This has been resolved.