Count of registered events in Programs with category combinations should double of the actual value

Hi DHIS2 Community

When I use category combo for Programs as attributes, the number of registered events shows as double of the actual number of events. See below, registered events are 3, but it says ‘Registered events (Total: 6)’.

Is this intentional? or is something wrong here? I feel the Registered event should show as 3 and not 6.