Mobile device support unicode characters

I called an API for a list of baseball players: MLB Data API

I connected this to a list item or text item. The data from the API was retrieved OK and displayed in the web preview, but in the mobile client (iOS) the data was not retrieved. Turns out, there was a field using unicode characters for the name of the player (many have Spanish surnames).

How can I handle these characters so the entire API is not displayed?

P.S.: In the end the API has a way to exclude certain fields and I excluded the unicode fields and the API then displayed OK.

Here’s how it looks when testing API