If some listings on your website show only one photo or none at all, even though they have 30 or more photos in Track, the most common cause is a sync limitation.
Why this happens. Track delivers photos in batches. During each sync, the connection retrieves only the first page of photos, so listings with many photos appear incomplete on your site. This is a gap on the HomeRunner side, not a configuration issue in your Track account.
What you can do. A manual re-sync of the affected listings does not add the missing photos, because the limit is in the photo retrieval itself. Contact support with the affected listings.