I have deleted the entry from the _options table and then de-activated and deleted Piklist. I then installed Piklist from the WordPress Plugin Repo (v0.9.3) and activated it. When I went to save data in the fields as shown in the previous screenshots I got the exact same problem as before.

Here is the info from the DB entry in case that provides any insight:

option_id: 767
option_name: cbts_theme_settings
option_value: a:2:{s:13:”related_links”;a:2:{i:0;a:1:{i:0;s:24:”Associated Baptist Press”;}i:1;a:1:{i:0;s:23:”http://www.abpnews.com/”;}}s:14:”selected_feeds”;a:3:{i:0;a:1:{i:0;s:0:””;}i:1;a:1:{i:0;s:0:””;}i:2;a:1:{i:0;s:4:”none”;}}}
autoload: yes

Sure. Here you go (I anonymized some of it for placeholders here, but nothing material has been changed):

/*
Title: Slideshow
Post Type: plugin_name
Order: 0
*/
piklist( 'field', array(
	'type'			=> 'group',
	'field'			=> 'slides_info',
	'add_more'		=> true,
	'label'			=> 'Slide Images',
	'description'	=> 'Add the slides for the slideshow.  You can add as many slides as you want, and they can be drag-and-dropped into the order that you would like them to appear.',
	'fields'		=> array(
		array(
		'type'			=> 'file',
		'field'			=> 'slide_image',
		'scope'			=> 'post_meta',
		'label'			=> __( 'Add/Edit Image', 'plugin-text-domain' ),
		'description'	=> __( 'Use the media uploader to add, select, or edit an image to use as a slide.', 'plugin-text-domain' ),
		'options'		=> array(
			'modal_title'	=> __( 'Add/Edit Image', 'plugin-text-domain' ),
			'button'		=> __( 'Add/Edit', 'plugin-text-domain' )
			)
		),
		
		array(
		'type'			=> 'text',
		'field'			=> 'slide_url',
		'scope'			=> 'slide_image',
		'label'			=> 'Image Link URL',
		'description'	=> 'If the slide should have a link, enter the URL for the link here.'
		),
	),
	'on_post_status' => array(
		'value' => 'lock'
	)
));