Sort by submit_time not displaying

Hi there,
I am using CF7, CFDB, and the shortcodes actions and filters plugin and I’ve gotten my shortcode working. But now trying to filter the results by submit time isn’t working out. I tried the shortcode builder to make sure my submit time was valid, and it was. Then I tested from the shortcode builder page the following shortcode link
[cfdb-value form="Guest List" show="your-name" filter="submit_time>last week"]
which from the shortcode builder page did display results, however testing from an unpublished draft of a wordpress post did not display anything, so I’m wondering if there’s some sort of disconnect with the submit time and displaying on the site? I didn’t set any security options and my short code that I built worked out other than trying to add a filter for sort time.

This is my shortcode, titled shortcode2

require_once(ABSPATH . 'wp-content/plugins/contact-form-7-to-database-extension/CFDBFormIterator.php');
$exp = new CFDBFormIterator();
$exp->export($atts['form'], $atts);
while ($row = $exp->nextRow()) {
    if ($row['menu-838'] != 0) {
        echo $row['your-name'];
		echo " +{$row['menu-838']} <br />";
    } else {
		echo $row['your-name'] . '<br />';
	}
}

The following shortcodes did display results

[myshortcode2 form="Guest List" filter="checkbox-376~~/.*Friday/"]
[myshortcode2 form="Guest List" filter="checkbox-376~~/.*Saturday/"]

The following shortcodes did not display results

[cfdb-value form="Guest List" show="your-name" filter="submit_time>last week"]
[myshortcode2 form="Guest List" filter="Submitted>-last week"]
[myshortcode2 form="Guest List" filter="submit_time>-7 days&&checkbox-376~~/.*Saturday/"]
[myshortcode2 form="Guest List" filter="submit_time>7 days&checkbox-376~~/.*Saturday/"]

As always your help and insight are greatly appreciated.
Thanks!