I created a segment and shared it to the Experience Cloud. I can see the segment showing in the Audience Library interface, but it's showing a size of "Collecting Data". Why can't I see how many visitors are in my audience?
Sharing segments with the Experience Cloud is part of the People Core Service. We have a dedicated forum for questions around the People Core Service. Please come join us on the Core Services forums
Adobe Experience Cloud Audiences
This particular question is answered is answered here: Why is my historical audience showing as "collecting data"?