Shortcode use

Hi,

Struggling to get this to work. Long story short I’m using essential grid to show my posts but want a category icon to show on each block. I need to use the shortcode option as it doesnt like other code formats.

I’ve tried this shortcode – [tax_icon term_id=”%post_id%” class=””]. It returns the post number but not the icon. Removing the %post_id% just returns the text. Reading the documentation I cant work out if I’m to add code elsewhere or just use the shortcode?

Thanks