Custom event not showing

I am creating a custom event: called - “invitation accepted”. 

My goal is that this custom event will happen after the “Page is Viewed” on page_url = 123 event happens.

but the custom event is not shown at all when I  look at the user event stream.

I would expect it to be shown right after the Page iS View event.

• I  do see the custom event added to my Events
• I  can choose this custom event when creating a segmentation chart, but when I  do that the chart is shown empty (like no events occur)

Thank you