Limit list issue list by API

Hi there,

When I search in the admin UI using filters that results in an URI like this:
https://sentry.io/organizations/{org}/issues/?project={projectId}&statsPeriod=24h

…I only get like 3 issues.

When however I use the Sentry API with a GET like this:
curl -H ‘Authorization: Bearer {token}’ https://sentry.io/api/0/projects/{org}/{projectName}/issues/?statsPeriod=24h

…I receive a JSON with 15 issues.

Any idea what is causing this discrepancy?
Thanks.
Alex