Unfortunately, it’s not just Tailwind. Title field is there by default. If you pin an image, it’ll automatically pin it without a Title. Then you have to go into a pin and add a title. I am unable to attach screen shots into this thread but I could email them to you to show what I mean.
Here’s another plugin that I use on one of my sites that supports pinterest titles currently. It’s a paid plugin. It uses data-pin-title for that field.
https://www.wptasty.com/blog/pinterest-titles-and-bug-fixes-tasty-pins-1-0-0
here’s an example of code used with that plugin
img class=”aligncenter size-full wp-image-8548″ src=”[myurlhere]/Carrot-Cake-Roll-21.jpg” alt=”Slice of carrot cake roll.” width=”680″ height=”1022″ data-pin-title=”Carrot Cake Roll (gluten-free)” data-pin-description=”A lot of text and words here”