Anomaly in Dropdown when using IOS

I have detected a possible bug in the dropdown when used under IOS.

Situation

I have a simple dropdown with an Object List fed by a database list. The contents of the list is modified by a MAP formula, such as:

MAP(data.BasketTotalsByCategory, {label: item.category, value:STRING(item.basket_category_id) })

Problem

Under IOS, the dropdown does not display the category label, just the value, for example:

However, in a web or Android environments, the dropdown displays correctly, for example:

By the way, the dropdown was working correctly under IOS until a couple of weeks ago.

I shall appreciate your comments regarding this situation. My app uses dropdown components in several areas.

Thank you