Telescoping gallery

Okay, this is very strange. I have a single column gallery with 20 something images. Each image gets progressively smaller until the captions are a single letter wide. When I click an image and it opens in the lightbox, it scans through each image, displays the correct on but is very dark and has a tiny thumbnail in the frame too. See:
https://www.dropbox.com/s/ji2xbmf38ojkrkv/Screen%20Shot%202015-09-05%20at%207.53.12%20PM.png?dl=0

Here is the gallery code:
[mla_gallery columns=1 post_tag="sketch,italian trip" tax_operator="AND" link="file" size="full" mla_markup="blog-post" meta_key=" image_sort_name" orderby=meta_value order="ASC"]

Here is the markup Item code:

<span class="blogpost-gallery-image-title"><h3>[+template: ( [+iptc:object-name+] ) +]</h3></span>
<[+itemtag+] class='gallery-item [+last_in_row+]'>
	<[+icontag+] class='gallery-icon [+orientation+]'>
		[+link+]
	</[+icontag+]>
	<[+captiontag+] class='wp-caption-text gallery-caption'>
                <span id="detail-primary-description">[+description+]</span>
<br>
<br>

Is this something obvious?
Here is a link to a screenshot of about halfway down the gallery.
https://www.dropbox.com/s/2cvfqqf79zut765/Screen%20Shot%202015-09-05%20at%207.50.33%20PM.png?dl=0

Thanks for any help.
Jeff

https://www.ads-software.com/plugins/media-library-assistant/