Family Sharing-shared calendar
So I setup family sharing where each of my kids have their own apple ID. We also have a shared calendar. If I enter an item in the calendar they both can see it, but if either of them enters a new calendar event on the shared family calendar it doesn't appear on the the rest of our calendars. I would assume there is a setup issue on my kids phones but I have looked and looked and can't figure out what setting isn't right. Hoping someone can help me.
iPhone 7