Tagdiv Composer – shotcodes are replaced with their rendered content

I have migrated from Visual Composer to Tagdiv Composer.
I use a handful of plugins on our homepage (Feedzy RSS for instance).
There are text blocks (“Text with title”, “Column Text” etc) where I use shortcodes to display content, like [feedzy-rss feeds=”http://somepage.com/feed”%5D. This works very well.
However, when I later want to edit the page, I no longer get to edit the shortcode but its rendered content.

So where the text block should contain [feedzy-rss feeds="http://somepage.com/feed"] it now contains

<div class="feedzy-rss">
<ul>
 	<li class="rss_item" style="padding: 10px 0 17px;"><span class="title"> <a href="http://somepage.com/link" target="_blank" rel="noopener"> A thing </a> </span>
<div class="rss_content"></div></li>
 	<li class="rss_item" style="padding: 10px 0 17px;"><span class="title"> <a href="http://somepage.com/anotherlink" target="_blank" rel="noopener"> Another thing </a> </span>
<div class="rss_content"></div></li>
</ul>
</div>