Are you sure there isn’t a mistake in the Event Category Filter?
But keep in mind that events and conversion goals are two different things in Matomo. If you have created a goal you can search for its name in the metrics. Then you really have the conversion goal in your column, not just the event. But depending on how you’ve defined your conversion goal, it might be the same as the event. Don’t know if this thought helpts or if you’ve fixed it by now.