When you click Who in the search bar, the guests dropdown opens on the right side of the bar instead of under the Who field.
Why this happens. This is a layout bug in the HomeRunner Toolkit. It appears only when the search bar is configured to hide the Where field and promote Bedrooms into the bar, giving the order When, Who, Bedrooms, What. All other search bar layouts and the mobile layout are unaffected.
How to fix it. Update the HomeRunner Toolkit to version 3.287.1 or later. After updating, the guests dropdown opens aligned to the left edge of the search bar, covering the When and Who fields as expected. No settings change is needed.