Smart Lists with a "Person is Created" trigger, in combination with additional filters, don't qualify people as expected.
Using filters with Person is Created triggers can cause issues when a person is created, but the values that the filters look for aren't filled in yet. When the Smart List checks the filters, the data it looks for hasn't been filled in yet, so people don't qualify.
Here are a couple alternatives:
- A scheduled batch campaign that looks for people who were created and meet those filters.
- Use the Person is Created trigger, but use a wait step to allow time for the date to fill in, followed by choices in the flow to qualify people.