Meta slider plugin only works after first refresh – Object has no method ‘flex slider’

It looks like you have 2 versions of jQuery loaded on your page (one near the top, the default one from WordPress, and one near the bottom, loaded from google CDN). You should only have one. That is unrelated I think but it could be problematic in the future.

The colemans page is loaded with AJAX. It looks like it loads the page content, but not the page JavaScript. You will need to either switch theme, or include the Flex Slider JavaScript & CSS on every page so it is always present.

The easy way to do this is to just copy and paste these lines into your themes header.php file:

<link rel="stylesheet" id='metaslider-flex-slider-css'  href="http://www.think-ag.com/wp-content/plugins/ml-slider/assets/sliders/flexslider/flexslider.css?ver=2.6.3" type="text/css" media="all" />

<script type="text/javascript" src="http://www.think-ag.com/wp-content/plugins/ml-slider/assets/sliders/flexslider/jquery.flexslider-min.js?ver=2.6.3"></script>

The, not so easy, but much nicer way is to use the wp_enqueue_script and wp_enqueue_style functions.

Then uncheck ‘Print CSS’ and ‘Print JS’ in the advanced slideshow options as you’re including the JS and CSS manually, and there is no need for Meta Slider to enqueue it.