What does "Waiting" mean on a trigger split?

Hi,

I set up a trigger split where if a customer has a certain products (we call them titles) in their order, they should go into that branch of the flow. I was double checking to see if it was working and I noticed that in the Waiting tab, there is a mix of people in there who qualify and don’t quality for the trigger split.

Does the “Waiting” tab in the trigger split refer to people who have not been categorized as Yes or No yet?

Please see an example of what I saw below. Thanks!