Leaving /> when used in HTML

[dsuguy2007]

I'm using the RSS feed to populate emails in my mailchimp emails. It works great except, I had to edit the code to make the image size for the main image to be "medium" which is 300x300. I only changed the code on line 135 for the Filter image for primary image. Mailchimp will only read the initial image and you can't specify to use the thumbnail image. This works perfectly except when it generates it leaves "/> beside the image. I've checked and checked and can't figure out why it's doing that.

This is the code that gets generated in mailchimp
<img src="https://www.saintfrancisocc.org/wp-content/uploads/2023/05/QOTW-for-posts-300x196.png" mc-rss-item-img"="" height="196" width="300" style="height: 196;width: 300;"> "/&gt;

You can see the rss feed at https://www.saintfrancisocc.org/feed/

Any idea why it's leaving that trailing "/>

[chesio]

mc-rss-item-img"=""

This looks suspicious to me.