Content box being displayed twice and outside of editable region

Help please.

I have a content box that I’ve added in Tailor and placed a Mailchimp shortcode into. The shortcode displays a small form – email address box and submit button.

When added in Tailor, it looked ok originally and displays ok when viewing the page. However, I can no longer edit the content box. When Tailoring the page, this content box now appears below all the other information and cannot be clicked on. And there’s two of them?!

I’ve checked the code in the Edit Page of WordPress and the content box appears to be in the correct area.

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[tailor_posts style="default" layout="grid" items_per_row="3" dots="1" meta="excerpt,thumbnail" image_size="medium" aspect_ratio="1:1" stretch="0" posts_per_page="3" class="myblogposts tailor-589c6582ed145"][/tailor_posts]
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<h3 style="text-align: center;">JOIN THE BE MORE NEWSLETTER</h3>
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[mc4wp_form id="340"]

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Hoping someone can help. Thanks.