Expand on click feature adds expand SVG to page after closing lightbox

Description

The expand on click lightbox feature is causing an SVG icon to appear on the page next to the image after closing the lightbox. I would expect no unexpected elements to start showing after closing.

HTML of the element that appears:

<button class="lightbox-trigger" type="button" aria-haspopup="dialog" aria-label="Enlarge image" data-wp-init="callbacks.initTriggerButton" data-wp-on-async--click="actions.showLightbox" data-wp-style--right="context.imageButtonRight" data-wp-style--top="context.imageButtonTop" style="right: 16px; top: 16px;">
            <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="none" viewBox="0 0 12 12">
                <path fill="#fff" d="M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z"></path>
            </svg>
        </button>

Step-by-step reproduction instructions

For this issue I am using a classic theme (Beaver Builder Theme) and have upload a theme.json file to my child theme to enable lightbox on all image blocks.

theme.json code

{
    "version": 2,
    "settings": {
        "blocks": {
            "core/image": {
                "lightbox": {
                    "enabled": true
                }
            }
        }
    }
}

the lightbox appears for all the image blocks as intended but when i click on an image, the lightbox is displayed, but once the lightbox is closed the stray html element appears on the page.

Screenshots, screen recording, code snippet

No response

Environment info

Environment details below

Using Beaver Builder Theme

Please confirm that you have searched existing issues in the repo.

[X] Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

[X] Yes

WordPress / gutenberg