Hi
By default, when an event is neutralized, that is like the one in the example below.
disks:some-failed Error disk.failed
and latter after the user intervention, it changes to
disks:none-failed Normal disk.failed then the latter event restore the status and the event is neutralized.
As the first one is Error severity and the latter one is of Normal severity will neutralise and move the event from the current events to histroy events.
But still i am not sure if that's case, should PA move the event in the event correlation though it shouldn't be, let me check and get back to you.
Regards
adai