I cannot get an Advanced Custom Field code snippet to work – and ACF support say it should work

I am trying to get the below action to display on an archive page on my site via Code Snippets:

This is a hook for Advanced Custom Fields to display some basic text on an archive page (product_cat), ACF support say that this should work – but I cannot get it to display. ACF support have stressed that I need to look at how I am implementing this code, but I can see nothing wrong with implementing this how I am trying (Code Snippets).

Am I missing something here?