Taxonomy Query Paging Broken

I’m having a problem with the paged results for a Taxonomy-based query. My page has the following shortcode in it (one and two below are replaced by a long list of non-sermon audio series’):

[sermons taxonomy="wpfc_sermon_series" tax_term="one, two" tax_operator="NOT IN"]

The output is several dozen sermons, being paged properly with wp-pagenavi. However, as I navigate to subsequent pages, the <audio... tags are not being swapped by mediaelement.js. Is there a callback missing on the ajax page load? The result varies by browser depending on how each handles HTML5 media tags. In Chrome, the subsequent pages actually fail to load altogether or take 20-40 seconds to load. Firefox/IE load, but the media elements are either a different style or missing.

Page here: http://www.crossroadsframingham.com/media/sermons/

Thanks!!

http://wordpress.org/extend/plugins/sermon-manager-for-wordpress/